GOYERRNES - Buying Guide

Bestselling from GOYERRNES on Amazon

1. GOYERRNES Ammonia Gas Meter Detector, NH3 Gas Monitor Sensor with Range 0-100 ppm & 0.1ppm Resolutio...
2. GOYERRNES Dissolved Oxygen Meter with Bluetooth, Dissolved Oxygen Test Kit with Electrode Filling Fl...
3. GOYERRNES Handheld Stroboscope, Strobe Light Tachometer, 60-999999 RPM/FPM with 0.001% Accuracy, Spe...
4. GOYERRNES HVAC Manometer, 206 kPa/30 Psi Gas Pressure Tester, Professional Air Pressure Meter, Hand...
5. GOYERRNES Pyrometer, 30:1 Industrial Infrared Thermometer Gun, -58 ~2912 High Temp Waterproof Digit...
6. GOYERRNES Air Flow & Wind Speed Meter, Handheld Cup Anemometer with Waterproof Touch Button, CFM Met...
7. GOYERRNES Manometer HVAC Gas Pressure Tester, Dual-Port Air Pressure Meter Gauge with Hose Kit Measu...
8. GOYERRNES Digital SMD Tester 6000 Counts, Auto Ranging Intelligent Resistance Capacitance Diode Zene...
9. Manometer, Professional Air Pressure Meter, Dual-Port HVAC Digital Manometer Gas Pressure Tester,12 ...
10. GOYERRNES Digital Clamp Meter TRMS 6000 Counts, AC/DC Volt Amp Meter Auto Range Ammeter Voltage Test...

Features

• Large measuring range & high accuracy - The Ammonia detector is built with a high-quality electrochemical sensor, offering a large measuring range and high accuracy. It can measure ammonia gas concentration from 0 to 100PPM with a resolution of 0.1PPM and high accuracy of +/-2%. This air quality meter is well-suited for continuous monitoring of NH3 in real-time.
• User-Friendly Alarm -You can set two alarm values, high and low, to alert you with a beeping sound and a bright light as needed. Ideal for poultry farms, pig farms, horse stables, livestock, cattle, landfill, animal welfare shelters, fish farms, waste management.User-Friendly Alarm -You can set two alarm values, high and low, to alert you with a beeping sound and a bright light as needed. Ideal for poultry farms, pig farms, horse stables, livestock, cattle, landfill, animal welfare shelters, fis
• Long-lasting and rechargeable - With a built-in 1600mAh rechargeable battery, the gas detector provides an extended battery life of up to 30 hours. Easily recharge the battery using the included USB cable.
• Tripod hole for easy mounting - This NH3 gas monitor features a tripod hole that allows you to free your hands while measuring. Additionally, it measures temperature and humidity, so you can keep track of the air quality in all directions.
• Long service life - The 5800G features an electrochemical principle sensor with a lifespan of over two years, compared to other sensors with a lifespan of only one year.
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Features

• Remotely Monitor with Mobile App - Our dissolved oxygen detector conveniently pairs with your phone, enabling you to monitor data in real-time, as well as remotely save, view, and print historical records. Perfectly suited for various applications such as aquaculture, water quality analysis, and environmental monitoring.
• Wide Range & Precise Measurement - With an oxygen concentration range of 0.0-40.0mg/L, our meter surpasses most on the market, which typically range from 0.0-20mg/L. Measurement and calibration are simplified as the electrode can be directly submerged without opening the protective cap. Plus, the automatic temperature compensation (ATC) ensures accurate results within a 0-50 temperature range.
• User-Friendly Design - Simply immerse the electrode in water for quick and effortless operation. The detachable measurement probe facilitates easy replacement, and the kit includes 6 probe caps and electrolyte water for enhanced precision over time.
• Dual Calibration Methods - Enjoy the convenience of 100% air calibration without removing the electrode cap. If the air calibration is inaccurate, you can also use the accompanying electrolyte water for a 0% calibration. This dual calibration approach ensures maximum accuracy in your measurements.
• Versatile Functionality - The backlit digital screen provides clear and convenient data reading. Additional features like automatic shutdown, data hold, and low battery indication cater to various needs, making it ideal for measuring dissolved oxygen and temperature in aquariums, swimming pools, ponds, freshwater and marine aquaculture, school experiments, laboratory sterile environments, and scientific research.
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Features

• Non-contact Measurement - The GOYERRNES stroboscope uses Innovative LED technology to measure rotational speeds of up to 99999 RPM/FPM with 0.001% accuracy. It's a handheld device that helps you easily spot surface defects on high-speed objects without touching or stopping them.
• Easy to Operate - Rotate the dial on the GOYERRNES stroboscope to adjust the strobe light's frequency and timing. When the strobe syncs with the moving object, it appears stationary or slow-moving, making it easy to observe and troubleshoot. Widely used in gear meshing, spinning, HVAC, papermaking, printing, turbines, motors, and fans.
• High Luminance Flash LED - Our handheld stroboscope is equipped with 16 high-intensity LEDs, delivering a brightness of up to 1500 Lux. This enables a broader illumination range, brighter flashes, and clearer images during use. The adjustable brightness of the strobe adapts to various lighting conditions, ensuring sharper imaging and more accurate readings.
• Professional & Multifunctional - This Strobe Light Tachometer has functions such as: RPM,FPM mode, zero-out, phase adjustment, data storage & review, battery level display, backlight, etc. Which can meet various measuring demands.
• Portable & lightweight - Built-in rechargeable 2200mA lithium battery, the stroboscope can work contiEquipped with a built-in 2200mA rechargeable lithium battery, our device can operate continuously for 8 hours. With a lightweight design weighing only 0.7 lb, it's easy to carry on-site, making it ideal for inspecting engine gears or troubleshooting.
• What's in the Box -1x Digital Stroboscoper, 1x Type-C Charging Cable, 1* Manual. GOYERRNES LED Stroboscoper comes with a 2-year after-sale service and lifetime technical support. Please feel free to contact us if you have any concerns.
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Features

• Large Measuring Range and High Precision - Our professional Manometer has a large measuring range of 206.8kPa/30.00Psi, with an accuracy of 0.3%FS, repeatability of 0.25%FS, Linearity/Hysteresis of 0.1%FS. And it can 0.5 seconds quick reflection of measurement data.
• Dual Port Design - Featuring two tube connectors, our digital manometer accurately measures both static pressure (positive/negative) and differential gas pressure levels. This essential tool is perfect for obtaining accurate pressure readings and diagnosing issues in HVAC heating, ventilation, and air conditioning systems.
• Professional & Multifunctional - This Pro Air Pressure Meter has functions such as: units switching (nH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, kgcm2), data hold, data record, MAX/MIN, Difference value, atuo off, backlight on/off, etc. Which can meet various measuring demands.
• Portable & Durable - Our differential pressure gauges are equipped with a protective cover to safeguard the measuring port from damage. Additionally, it comes with a carrying pouch and hand strap, making it easy to carry and protecting the manometer better during outdoor activities.
• Wide Applications - This digital handheld manometers can measure the air pressure of the single pipe, or differential pressure of two pipes.it is suitable for measuring of ventilation and air condition systems,and widely use forgas measurement,calibration,and any trouble shooting of any gas pressure systems.
• What's in the Box -1x Digital Manometer, 1x Cover&hand strap, 1x Carrying bag, 1xScrewdriver, 1* Manual. Our wind speed meter comes with a 2-year after-sale service and lifetime technical support. Please feel free to contact us if you have any concerns.
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Features

• Updated Manual Available - You can download our latest instructions on the product page, located in the 'Product guides and documents' section.
• Wide Range & High Accuracy - Measure an upgraded temperature range from -58 ~2912 /-50 ~1600 and get result in 0.25s, with a high accuracy up to 1 / 1%. No more guesswork when it comes to monitoring high temperature!
• Further Distance & Dual Laser - Our temperature gun has a D:S ratio of 30:1, which means it can measure the same area from a greater distance, making it more suitable for high-temperature measurements. Additionally, we use dual-laser technology to ensure more accurate and reliable measurement results.
• User-friendly Design - Our thermometer gun is designed with a tripod screw hole, allowing it to be mounted on a tripod. In addition, the lens protective cover design can effectively prevent scratches and damage to the lens, extending the product's service life. NOTE: Please remove the protective cover in measurement.
• Rechargeable and Touch Button - This temperature gun is rechargeable, allowing for charging and use at any time. Additionally, it features waterproof touch buttons that not only give it a stylish and sleek appearance but also increase its durability and provide a better user experience.
• Multifunctional - Our high-temp thermometer offers a MIN/MAX/AVG/DIF mode, which can store up to 12 sets of measurement data and adjust the emissivity value for more accurate temperature measurements. In addition, our Pyrometer is equipped with a backlight and flashlight function, which allows clear data reading or lighting in low-light environments.
• Professional High Temp Thermometer - Our Infrared Thermometer is extremely versatile, making it well-suited for HVAC, Electrical, Mechanical, and other industrial Predictive Maintenance tasks. It is also ideal for Hazardous Locations and Process, High-end broilers, Pizza ovens, Furnace, Kiln, Forge, Foundry, Metal Casting, Smelting, Aluminium Alloy, Ceramic and more.
• What You Get? - 1*GR-1600 Infrared Thermometer, 1*User Manual, 1*Small Screwdriver; 1* Carrying Case. Comes with 2 years warranty and lifetime technical support, if you have any questions, please feel free to contact us! We will solve the problem quickly for you. (Class II laser, optical power <0.5mW.Wavelength 630~670 um)
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Features

• Pro CFM Meter - Our airflow meter features a wide range of airflow CFM 0-999900, resolution of 0.001-100, and airflow area of 0.001-9999 ft2. It can help balance central air conditioning systems by reading the airflow readings throughout the house.
• Measures Wind from Any Direction - This cup anemometer features 3 sensitive wind cups that accurately and automatically sense wind from all directions. Unlike normal vane anemometers that require manual adjustment for accurate measurement, This cup anemometer offers unparalleled convenience and precision.
• Rechargeable and waterproof - This digital anemometer features a type-C port for easy charging, making it an ideal choice for long-term use or outdoor activities. It also has waterproof touch buttons for simple operation and doesn't have to worry about adverse weather conditions, making it suitable for a variety of outdoor conditions.
• Professional & Multifunctional - This Pro wind speed meter has functions such as: unit switching of wind speed(m/s, km/h, ft/min, knots, mph) and wind temp( , ), Max/Min/Average Wind Speed, battery level display, auto off, backlight, etc. Which can meet various measuring demands.
• What's in the Box -1x Digital Anemometer, 1x Type-C Charging Cable, 1xScrewdriver, 1* Manual. Our wind speed meter comes with a 2-year after-sale service and lifetime technical support. Please feel free to contact us if you have any concerns.
• NOTE:When using for the first time, please connect the battery according to the instructions in the manual.
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Features

• High Precision - Our professional Manometer has a large measuring range of 13.79 kPa / 2.000Psi, with an accuracy of 0.3%FS, repeatability of 0.25%FS, Linearity/Hysteresis of 0.1%FS. And it can 0.5 seconds quick reflection of measurement data.
• Dual Port Design - Featuring two tube connectors, our digital manometer accurately measures both static pressure (positive/negative) and differential gas pressure levels. This essential tool is perfect for obtaining accurate pressure readings and diagnosing issues in HVAC heating, ventilation, and air conditioning systems.
• Professional & Multifunctional - This Pro Air Pressure Meter has functions such as: units switching (nH2O, psi, bar, mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, kgcm2), data hold, data record, MAX/MIN, Difference value, atuo off, backlight on/off, etc. Which can meet various measuring demands.
• Portable & Durable - Our differential pressure gauges are equipped with a protective cover to safeguard the measuring port from damage. Additionally, it comes with a carrying pouch and hand strap, making it easy to carry and protecting the manometer better during outdoor activities.
• Wide Applications - This digital handheld manometers can measure the air pressure of the single pipe, or differential pressure of two pipes.it is suitable for measuring of ventilation and air condition systems,and widely use forgas measurement,calibration,and any trouble shooting of any gas pressure systems.
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Features

• Accurate & Sensitive - Equipped with a 6000 count LCD display, this SMD meter provides precise measurements for a wide range of applications. It can accurately measure resistance from 0 to 60m with a resolution of 0.1 , and capacitance from 0 to 99.99nF.
• Multifunctional - This ohm meter comes with a variety of advanced features, including high Diode Test, Continuity Buzzer, Zener/LED, Relative Value indication, Scan Model Function, and Battery test.
• High quality & Durable - The entire outer surface of the tester case is made of thermo plastic elastomer, providing a robust and durable finish. Additionally, Spare Test Pins included in the package are gold-plated, which helps reduce pin contact resistance and prevent rusting.
• Easy to operate & Portable - This SMD tester features automatic range and auto-shutdown functions, making it extremely easy to operate. Additionally, its small size makes it convenient to carry around.
• What's in the Box -1 x SMD Meter, 1 x Test Lead, 2 x 1.5V(AAA)Battery, 1 x User Manual. GOYERRNES SMD Tester comes with a 2-year after-sale service and lifetime technical support. Please feel free to contact us if you have any concerns.
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Features

• Accurate Airflow Pressure Tester This handheld manometer tester features a high-quality gas pressure sensor with wide range and precision. It also offers ambient temperature display and max/min and difference air pressure modes, with a range of 2.999psi, accuracy of 0.3%, repeatability of 0.2%, and linearity/hysteresis of 0.29%.
• Versatile Differential Pressure Gauge This monometer offers 12 optional pressure units, including: mmHg, inHg, ftH O, cmH O, inH O, Pa, KPa, mbar, bar, psi, Kgcm and ozin . Comes with 2x 25cm silicone hoses and 1/8 inch threaded barbed fitting.
• Single or Dual Port Pressure Measurement The manometer boasts two ports on the top for measuring both positive and negative pressure, allowing for accurate measurement of pressure difference (P1-P2) between two areas. Furthermore, the single pipe connector of the air pressure meter facilitates rapid measurement of current pressure values relative to the prevailing atmospheric pressure.
• Enhanced Features for Convenience This HVAC manometro features with large backlit LCD screen(4.95*4.45cm), boasted storage function for 100 groups of pressure data, allowing for easily compare and view. Auto shut down after 15 minutes of inactivity to save your battery.
• Widely Application Pressure Gauge This manometer gas pressure tester can be widely test differential wind pressure on gas pipelines, air conditioner, HVAC, furnance, airflow balancing, etc. Comes with 12 months warranty, for any quality problem, please feel free to contact us.
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Features

• TRMS 6000 Counts Multi Testers With auto ranging, data hold, LCD display, backlight and / switchable functions, it can also provide MAX/MIN, relative value, continuity, frequency, duty cycle and diode measurements.Great for diagnosing automotive and home electrical problems.
• Data Saved & Export Refer to user manual, and download and open the AiLink app first, Clamp-meter can automatically connected your phone(within 15m) helping you to record, analyze, download and process data and in real time. Support Android/IOS system.
• NCV Voltmeter Tester The electrical status can be checked effectively without touching any wires, when there is 90v-1000V AC voltage on the wires, the built-in buzzer will sound. 45mm Jaw design, no need to strip the wire, just clip on to easily measure up to 1000 amps of current.
• Accurate Clamp Multimeter GR-580S DMM can accurately measure DC voltage 600mV~1000V, AC voltage 6V~750V, DC/AC current 600A~1000A, resistance 0~60m , capacitance 6nF~600 F, frequency 9.999Hz~9.999MHz, duty cycle 0.1%~ 99.9%, temperature -4~1832 .
• Safety & Protection Pass safety standard IEC 1010, CAT III 600V, double Insulation/pollution degree 2/Over voltage category CAT 600V overload protection. It will show OLor -OL on the screen when over range. Rubber protective sleeve design ensures that your Clamp-on-Meter is not damaged by drops.
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Features

• Digital CO2 Meter - Featuring an industrial NDIR co2 sensor, the GOYERRNES air quality monitor 531G accurately measures carbon dioxide levels from 0 to 10000 ppm with a 5% accuracy, with a display resolution of 1ppm. It is widely used to track co2 levels in bedrooms, cars, campsites, and recreational vehicles such as RVs during travel.
• Indoor Hygrometer - A large, colorful LCD digital screen that is easy for people to identify and read. It not only monitors the CO2 content, but also tests temperature and humidity. As a perfect air quality monitor, it can keep your family healthy and is ideal for indoor places such as living rooms, classrooms, offices, and closed spaces.
• Smart Reminder - Our portable CO2 tester not only measures carbon dioxide concentrations, but also classifies the air quality into four levels: 0 to 999 ppm (Good), 1000 to 1999 ppm (Normal), 2000 to 4999 ppm (Poor), and 5000 to 9999 ppm (Serious). When the CO2 ppm exceeds 2000ppm, this smart CO2 detector will sound an alert with different sounds to notify you of the air quality.
• Easy to Use & Rechargeable - This mini CO2 measurement tool is lightweight at 230g and features a large, colorful LCD display measuring 84 x 69mm, making it easy to glance at and understand the indoor air quality. It has a built-in 2000mAh battery that can provide up to 12 hours of continuous use after a full charge. With its convenient size and rechargeable battery, you can take the CO2 meter with you wherever you go.
• Multiple Uses - An air quality monitor is a crucial tool for any household. It can help detect gas and air pollution in various environments such as homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, parties, etc. This monitor can always keep you and your family under healthy air conditions.
• Note: When comparing with other CO2 meters, please bear in mind the differences (approximately 50 ppm). After all, different CO2 meters use different NDIR sensors, so there may be discrepancies in their test results.
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Features

• Multi-Function Clamp Multimeter 4000 counts voltage tester with auto/manual range, continuity, LCD display, relative value, data hold, backlight, diode test and / switchable function. Helping you to diagnose&troubleshoot electrical issues quickly.
• Data Saved & Export Refer to user manual, and download and open the AiLink app first, clamp-meter can automatically connected your phone(within 15m) helping you to record, analyze, download and process data and in real time. Support Android/IOS system.
• Large 45mm Open Jaw One-handed operation, No need to strip the wire, just clip on to easily measure up to 1000 amps of current. Note: When measuring AC current, the neutral and live conductors should be separated, otherwise the reading will always be zero.
• Accurate Multi Tester DMM can accurately measure DC voltage 400mV~1000V, AC voltage 4V~750V, DC/AC current 400A~1000A, resistance 400 ~40M , capacitance 4nF~200 F, frequency 9.999Hz~9.999MHz, duty cycle 0.1%~ 99.9%, temp -4~1832 .
• Safety & Protection The anti-fall silicone design on both sides ensures that it is not easy to be damaged when dropped. GR-570T-APP Clamp-on-Meter has overload protection in all ranges, when over range, OL or -OL will be showed on the screen.
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Features

• Powerful Performance - Our solar panel tester can measure power from 5 to 1600W, voltage from 12 to 60V, and current from 0 to 60A, making it perfect for evaluating the performance of solar photovoltaic systems. Additionally, it helps identify quality differences among photovoltaic modules and find the best angles or spaces for solar panel placement.
• Auto & manual mode - You can choose automatic measurement for quick, approximate data, or opt for manual measurement for precise results. The simple operation ensures both amateurs and professionals can effortlessly measure photovoltaic panel parameters such as power, voltage, and current.
• Environmental Protection - Our solar photovoltaic tester eliminates the need for batteries, as it can be operated simply by connecting the cables to the solar panel. The kit includes two MC4 connection cables and crocodile clip cables.
• Safety Protection - The 1600W solar multimeter comes with five layers of protection: overheat protection, overvoltage protection, overcurrent protection, reverse connection protection, and over-rated power protection, giving you peace of mind when using it.
• Compact and Portable - Our intelligent MPPT solar panel tester comes with EVA packaging, weighing only 176 grams in total. You can easily fit it into any toolbox, making it highly convenient to carry around.
• Note: Before testing, please ensure to disconnect the solar panel from other devices or loads. This tester is unable to measure multiple solar panels connected in series, but it can measure multiple solar panels connected in parallel.
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Features

• High Temp Gun for Industrial Applications - Our infrared pyrometer has a max measuring temperature of nearly 3000 degrees(58 to 2732 ), with an high accuracy of +/- 2% at average. It meets the needs of various industries and is suitable for professional high-temperature testing in fields such as HVAC, furnaces, kilns, forging, casting, metal casting, smelting, etc.
• Safer Measurement & Dual Laser - With a distance-to-spot ratio of 30:1, the dual non-contact digital lasers provide instant targeting, allowing you to stand further away from the heat source to measure high temperatures. Capture the hot spot instantly and measure within 0.25 seconds only.
• Multifunction Flashlight IR Thermometer - Measures with MIN/MAX/AVG/DIF modes, allows you to set high/low/difference of temp alarms, alerts you if temp is above or below set temperature. The large backlit screen and flashlight helps you to complete jobs in the dark.
• Wide Application - Extremely convenient for professional high-temperature testing in HVAC, electrical, mechanical industrial applications, predictive maintenance, hazardous locations and processes, high-end broilers, pizza ovens, furnaces, kilns, forges, foundries, metal casting, smelting, aluminum alloys, ceramics, etc.(NOT FOR HUMAN)
• What You Get? - 1*GR-150 Infrared Thermometer, 1*User Manual, 1*9V(6F22) Battery, 1*Screwdriver; 1* Carrying Case, 1*D Shape Buckle. Comes with a 2-year warranty and lifetime technical support. If you have any questions, please feel free to contact us! We will quickly solve the problem for you. Class II laser, optical power <0.5mW.Wavelength 630~670 um
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Features

• True-RMS Clamp Meter - This advanced multimeter can accurately measure AC/DC current, AC/DC voltage, frequency, and duty cycle. It also offers resistance, capacitance measurement, diode testing, and audible continuity testing. With True RMS technology, it provides accurate measurements on non-linear loads. The meter is easy to use and perfect for labs, factories, and household applications.
• Remote Monitoring via Bluetooth - By connecting the mobile app via Bluetooth, you can easily monitor real-time data and view historical data remotely. With this intelligent clamp amp meter, all electrical measurements can be displayed on your phone or tablet, with automatic graphing of trend charts, and support for sharing in Excel and TXT formats.
• Multifunctional and Easy to Read - The AC/DC clamp meter features a backlit screen and LED flashlight, allowing you to see the readings even when working in dim or low-light conditions, such as electrical closets, under buildings, behind appliances, and other enclosed spaces. The convenient LED flashlight illuminates dimly lit areas.
• Non-contact Voltage Testing - The Non-contact Voltage (NCV) detector allows for easy and rapid determination of the presence of voltage without the need to touch any wires. It features a sound and light alarm warning function for high voltage, reminding users to exercise caution. Simply switch the dial to NCV.
• Safety First - The clamp multimeter has passed overvoltage categories CAT 600V, CAT 300V, and CE safety standards. It also has overload protection on all ranges and double insulation protection. Operating Instructions: Please remove the cup before using the test leads.
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Features

• High Precision Measuring range of 30-130dBA.+/- 1.5dBA with 0.1dBA resolution.
• Data Hold & Sensor Backlit Easy to read display with a MAX/MIN function to know the MAX and MIN dB levels recorded by the meter.Automatic backlit display for easy visibility in dark situations.
• Simple Operation Quite easy and simple to use. You only be paying for what you need in a sound meter, a decibel reading.
• Multipurpose A great basic sound meter for use across the spectrum in many different fields from music recording, neighbor noise complaints, industrial settings, office settings, speech therapy & more.
• Provide 1 year warranty and lifetime technical support.If there is any product issue, Please feel free to contact us!
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Features

• GOYERRNES 990B SMD Tester
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Features

• 2 in 1 Formaldehyde Detector This HCHO meter is developed using electrochemical formaldehyde sensor (HCHO) and TVOC thick-film semiconductor gas sensor, the sensor with high sensitivity not only enables accurate readings within 30 seconds, but also enables higher accuracy of the air quality detector. TVOC Resolution: 0.05mg/m3, Formaldehyde resolution: 0.01mg/m3.
• Color LCD & Audible Alarm Equipped with digital 28 TFT True Color LCD and backlight for you to read clearly in a dark environment. During the measurement, if the value exceeds the normal value, the detector will give an alarm, and the color the interface changes according to the level of risk to ensure your safety.
• Widely Used The indoor air quality monitor can accurately detect the level of formaldehyde and volatile organic gas (TVOC) in the air with high sensitivity, and detect the comprehensive level of volatile organic gas in the air. It is widely applicable to the on-site quantitative and qualitative detection of formaldehyde in the air of rooms, indoors, residential areas, public places, living quarters, and factories and mines.
• Long Lifespan GR-5800N adopts electrochemical principle, which is one year longer than other common sensors. Equipped with rechargeable battery, large battery capacity: 2000mAh. The working time can be about 15 hours, with a dedicated USB charging cable. With backlit LCD display and low battery indicator. Auto power off/off mode saves battery power.
• Service This product is equipped with a storage bag, manual and USB data cable, which can be connected to other USB interfaces for charging. This product enjoys a 365 day warranty and lifetime technical support. If you have any questions, don't hesitate to contact us.
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Features

• Wide Measure Range Megohms meter can choose output test voltage range: 500V/1000V/2500V or 5000V, It can also measure 1M ~200G Insulation resistance and high AC voltage up to 750V. Frequency range: 40Hz~400Hz, suitable for maintenance and inspection of various electrical systems and equipment.
• Safety Structure Design The whole machine adopts low power consumption, high integration chip circuit design, with automatic zero calibration & over-range indication function. The product complies with IEC-1010 double insulation, environmental pollution class II and overvoltage class II safety standards. Stable performance and easy operation.
• LCD Backlight Digital Insulation resistance tester provides 1/2 digit large screen liquid crystal display & 1999 max reading. Even in a dim environment can be quickly and accurately detect the data. 10 seconds of inactivity backlight will automatically go out.
• Rich Functions GR-6688B combines all the functions you need, data hold, auto ranging, low battery indication, rugged anti-slip and anti-drop protective cover & HV high voltage warning function. which is an ideal tool for you to complete the measurement indispensable of insulation resistance, voltage and other parameters.
• You'll get Comes with a set of special test leads, alligator clips, portable storage bag and 6*1.5V battery for quick start measure.GOYERRNES provides 365 days warranty and lifetime technical support.
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Features

• Professional Air Particle Detector: Large air quality monitor with laser scattering technology sensor and single chip technology, PM2.5/PM1.0/PM10 detection range: 0~999.9 g/m , resolution: 0.1 g. The response time is within 30 seconds, which is very suitable for indoor and outdoor environmental monitoring, and can also be used to detect the air purification effect of the air purifier.
• Multifunction: The air particle detector has test function, time recording function, correction function, parameter and alarm setting function. These features basically meet all your needs. Recording time, data storage, danger index alarm and auto power off time can be set manually. If you don't need the auto power off function, you can turn it off.
• Color LCD display audible alarm: It is equipped with a digital 28TFT true color LCD, which can provide clear data view even in dark places. The indoor air quality analyzer can meet the needs of real-time test and comprehensive test. When the value exceeds the exceeds the normal value, the detector will give an alarm, and the color of the interface will change according to the risk registration.
• Rechargeable battery widely used: equipped with rechargeable battery, large battery capacity: 2000mAh. The working time can be about 15 hours, equipped with a special USB charging cable. Portable air quality detector can help us detect air pollution in home, office, school, kitchen, bedroom, car, restaurant, factory, hospital.
• Service: This product is equipped with a storage bag, manual and USB data cable, which can be connected to other USB interfaces for charging. This product enjoys a one-year warranty and lifetime technical support. If you have any questions, don't hesitate to contact us.
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