Top Value Power Meter Reviews

Runleader Digital LED Engine Hour Meter,RPM &Temperature Display,Maintenance Reminder,External Powered Operating for Lawn Mower Generator Dirtbike Paramotor Outboard Motor Marine Compressor

TACH/HOUR METER----It is a multifunctional meter include functions Engine temperature meter gauge,TOT hours,JOB timer,Maintenance service timer,Tachometer..
TEMP METER GAUGE----Use the temperature sensor to measure engine real-time temperature value.
Programmable over-temperature alert reminder.
Maximum temperature value is viewable and resettable..
HOUR MERER----TOT hours help you to track how many hours are the engine/machine working.
JOB timer is used to measure the time of a particular work job such as change oil, it is resettable.
Maintenance timer is countdown tracking, remind the arrived status by red light and waring icon..
TACHOMETER----Record the real-time RPM value when engine is on, help to adjust engine idle.
Programmable engine firing patterns to keep the RPM value more accurate.
Flashed red light & warning icon for Alert RPM.
Data retained when engine /machine shutdown.

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Digital Tachometer Handhled Non Contact Laser Tach Meter 2.5 to 99999 RPM Meter, Professional Replacement Tachometers with Reflection Tape Marks, Battery Included

Accurate RPM Meter: rotational speed measurement range is 2.5RPM-99999RPM, resolution ratio: 0.1 rpm, precision :±(0.1%n+5d)rpm. Adopt the lastest microprocessor and laser technology, ensure the tachometer more accuracy and intelligent.
Memory Function: laser tachometers can automatically record the maixumum value/ minimum value/ last measure value/ average value after shut down the instrument. Super easy to review the previously measured memory values.
User Friendly Design: This digital tachometer RPM Meter features large clear LCD backlight display for easy reading even in dark place, battery low power indication and auto shutdown after 60s. Tachometer comes with 3-peice reflective tapes more conveneint and easy to measurement.
Widely Application: The tach meter suit for measurement rotate speed, linear velocity or frequency of motor, impeller blades, expansion cylinder and spindle, capable of measuring range from 2.5RPM-99999RPM.
Durable Material: Tachometer shell is made of solid ABS plastic, optimized electronic elements to make the measurement value reliable. Compact size and lightweight easy to carry and operate.

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Sper Scientific 850009 UV Light Meter

Sensor: The exclusive photo diode colour correction filter, spectrum meet C.I.E. Cosine correction factor meet standard | Large LCD display with barograph and Indicator | Zero Adj.: External adjustment by pushing button (40 Lux Range Only) |Peak Hold: To hold the peak display | Data Hold: To freeze the display value.
Power Supply: DC 9V battery. 006P, MN1604 (PP3) or equivalent. | Power Consumption: Approx. DC 8 mA | Weight: 220 g/0.48 LB | Lux Meter Dimensions: 200 x 68 x 30 mm (7.9 x 2.7 x 1.2 inch) | Sensor Probe: 82 x 55 x 7 mm (3.2 x 2.2 x 0.3 inch).
Memory: Save the max. & min. value with recall | Power off: Auto or manual power off. | Over Range Indication: “- - - - “.
Under Range Indication: “_ _ _ _” | Data Output: RS-232 serial data output | Operating Temperature:32°F to 122°F ( 0 to 50°C) | Operating Humidity: Max. 80% RH.
Supply Scope: 1 Unit of Digital Lux Meter, Light Sensor Probe with Protection Cover, Instruction Manual and Factory Calibration Certificate | Applications: Auditoriums, Theatres, Indoor Stadiums, Schools, Labs, Night Events, Amphitheatre, OT Rooms.

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Digital Sound Level Meter,Sound Meter for Classroom Home Street,30-130dBA dB Meter to Measure Noise,Noise Decibel Reader,Audio Sound Tester,Sound Testing equipmetent,Sound Measurement Device

【A Weighted Measurement】 A Weighted network (automatic switching range display).
【Fast/Slow mode selection】Press the MODE key, you can convert the response speed of the noise meter, FAST fast, SLOW slow.
【MAX/MIN Measurement】Press RANGE key to measure the maximum value of MAX and minimum value of MIN.
【Result Hold】The measurement result (HOLD) function.
Press the HOLD key to hold the measured sound level value.
【Sound level OVER or UNDER indicates】If the display displays “UNDER” or “OVER” characters, the sound level is lower than 30dB or higher than 130dB..
【LCD with backlight】After power-on, the backlight will automatically light up and turn off after 30 seconds. Press the backlight button to turn on the backlight..
【Automatic SHUTDOWN】3 minutes after the stop button, the meter will automatically shut down to save power..
【Low power indicator】 When the battery voltage decreases to a certain extent, the battery symbol in the upper right corner of the display will light up. In this case, the battery should be replaced..

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KETOTEK Power Meter Single Phase Energy Meter Electricity Usage Monitor AC 80-300V 100A Digital Voltmeter Ammeter Din Rail Voltage Volt Amp Watt Kwh Factor Current Power Consumption Counter

...me resistant material and high percision chip, making it safe to use. Accuracy is 1％±2 digits, measuring Speed is 2 times/s..
【Multi Functions】1.Data reset for multiple measurement needs. When the watt meter displays electrical energy, press the SAM CK button for five seconds, the meter will be reseted. 2.The value of electric energy and electric energy of cumulative time will be automatically saved when power off, and when the measurement power is reconnected,the meter will go on cumulating data..
【Multi-field application】This din rail voltmeter ammeter is built in transformer which can meet the load maximum current 100A. It can be used indoor or outdoor in school, market, home, industry, laboratory and other fields. *Attention: The meter can only use to measure 50/60 HZ AC city electricity. It will be destroyed when used to measure square waves, output of inverter, or non-standard sine waves..

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Digital CO2 Carbon Dioxide IAQ Monitor Controller with Relay Function 4.5m Cable NDIR Sensing Probe for Green House Home, Office, Factory

【Smart Controlling】This controller has a built-in photo sensor that overrides the CO2 control and shuts off the CO2 device when it senses darkness.It helps you to Monitor & Controlling CO2 value in Greenhouse or residential..
【Control CO2 Generator】With minimum and maximum CO2 levels. In Plant Mode, when the minimum level is sensed, power is supplied to a CO2 generator or regulator via the output socket. When the maximum level is reached, the power is turned off. Opposite in Human Mode..
【Adjustable Altitude】The monitor can be used in different altitude. You may adjust the current altitude to get precise value..
【Extendable Sensing Probe】Display CO2 chart with adjustable time scale (week/day/hour/min/auto). Sensing probe cable is 4.5 meter long to extend your measure spot 4.5 meter away from display..
【High Accuracy】Accurate 2-Channel low drift NDIR CO2 measurement , programmable CO2 control value & zone value allows you to set desired CO2 level for different plants..

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Digital Tachometer, Walfront DT2234C Handheld Digital Laser Tachometer 2.5-99999RPM Accuracy Non-Contact Measurement Speed Meter Gauge with User Manual

►WIDE MEASURING RANGE -- Wide measuring range and high resolution. Measures exact RPM with no guessing or errors..
►HIGHLY ACCURATE TACHOMETER -- Highly accurate non-contact digital tachometer and instant readings from 2.5-99999RPM..
►STRONG MEMORY FUNCTION -- Memorized the last value, max. value and min. value. Low battery power indication..
►EASY-TO-READ LCD SCREEN -- Readings are displayed on a large, easy-to-read LCD screen, stores last, min,max reading..
►NON CONTACT HANDHELD METER -- Non contact type handheld meter, auto-switch function, with user manual, convenient to use..

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YINMIK 2nd Generation pH TDS Tester Combo with Horizontal Display Digital pH Meter Professional PPM Meter for Hydroponics Swimming Pool Aquarium Household Drinking Homebrew

... pH level of the hydroponic nutrient solution to ensure it can be maximum accessed by the plants. TDS & EC Meter: Keep tracking of the amount of nutrients in your solution to prevent it from being too high or too low and hindering the healthy growth of plants..
[Helpful for Aquarist] pH Meter: Keep the balance of pH value of fish tank, drastic fluctuations in pH value can seriously damage the survival environment of fish. TDS & EC Meter: Monitor the amount of ionic salts in the tank to remind fish keepers when to change the water to balance the ratio of various substances..
[Friendly for Pool Owners] pH Meter: Keep the pool water at the right pH level, which is friendly to swimmers' skin and eyes. TDS & EC Meter: Keep the TDS value of the pool water appropriate can extend the life of the pool equipment..
[2nd Generation pH TDS Meter Combo] Tired of using 1st generation yellow ones with small vertical reading display? The screen of YINMIK 2nd pH TDS meter combo is designed for horizontal display, when you check the pH TDS or EC value, you can always get temperature reading simultaneously, which makes your job easier and more comfortable.
[What You Get] YK-P01B pH Meter *1, YK-E01B TDS Meter *1, YINMIK pH Calibration Buffer Powder* 6, LR44 Battery *6, YK-P....

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EMF Meter,Handheld Electromagnetic Field Tester, Radiation Meter, 0～2000mG/0～200μT, 0.1μT Resolution, 30Hz～300Hz, for Home Appliances, Power Lines and Industrial Equipments

MULTI FUNCTION: This EMF Meter can test the electric field and the magnetic field radiation at the same time. And you can switch between °C and °F freely in measuring the environment temperature. It can measure the radiation of high voltage power lines, appliances and electrical wires..
HIGH PERFORMANCE: This EMF Meter is equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the LCD digital display.The Large-screen LCD display can ensure the clear reading with backlighting..
Magnetic: 0～200μT. Unit: mG (Electric Field).
μT (Magnetic Field). Test Bandwidth: 30Hz-300Hz.
AUTO ALARM: When the test result exceeds the safe value, the EMF Meter will sound and light to alarm automatically..
PORTABLE SIZE: The EMF Meter is compact, easy to operate with one-hand operation, easy to carry and make field measurement..

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YINMIK Digital pH Meter TDS Meter Combo Accurate Measurement for pH TDS EC Temp with ATC, 2nd Generation Water Quality Tester with Horizontal Display for Hydroponic Swimming Pool Aquarium

... ensure it can be maximum accessed by the plants. TDS & EC Meter: Keep tracking of the amount of nutrients in your solution to prevent it from being too high or too low and hindering the healthy growth of plants..
[Helpful for Aquarist] pH Meter: Keep the balance of pH value of fish tank, drastic fluctuations in pH value can seriously damage the survival environment of fish. TDS & EC Meter: Monitor the amount of ionic salts in the tank to remind fish keepers when to change the water to balance the ratio of various substances..
[Friendly for Pool Owners] pH Meter: Keep the pool water at the right pH level, which is friendly to swimmers' skin and eyes. TDS & EC Meter: Keep the TDS value of the pool water appropriate can extend the life of the pool equipment..
[2nd Generation pH TDS Meter Combo] Tired of using 1st generation yellow ones with small vertical reading display? The screen of YINMIK 2nd pH TDS meter combo is designed for horizontal display, when you check the pH TDS or EC value, you can always get temperature reading simultaneously, which makes your job easier and more comfortable.

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Decibel Meter, LONVOX Digital Sound Level Meter with 30 to 130 dBA Measuring Range, Backlit LCD Display, MAX/MIN Noise Measurement, Data Hold, SPL Meter for Classroom, Noisy Neighbor, Office, Factory

...ond, which is ideal for dB tests in various contexts..
[Backlit LCD Display & Versatile Uses] – LONVOX sound level meter features a large backlit LCD display with 4 digits and 0.1 dB resolution, ensuring readouts are clearly visible, and easy operation in a low-light environment. When sound levels exceed the setup value, the backlit display will keep flashing as a visual alarm. Maximum or minimum dB level can be assessed by the sound meter. The data hold function can freeze the current readout of sound measurement based on personal needs..
[Ergonomic & Lightweight Design] – The sound pressure level (SPL) meter is light in weight and compact in size, which is easy to carry. The lightweight design allows long-time operation with less muscle fatigue. The compact design ensures the noise meter fits into your hand comfortably. The anti-slip and rubberized sides ensure the decibel meter is easy to hold. The decibel measurer has a 1/4″ mount thread for attachment to a stand, in terms of sound level measurement in different environments..
[Power Saving & Long-lasting Design] – LONVOX dB noise meter features an automatic power-off function to extend battery life. When the sound level meter is not in use for around ten minutes, it will power off automatic....

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Tropic Reptile Zoo Keeper Gift Idea Iguana T-Shirt

PRECISE MEASUREMENT: Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Testing magnetic field radiation with optional units mG/µT, the electric field with unit V/m. This emf meter can not test the RF value..
SOUND-LIGHT ALARM: When the testing result exceeds the value(0.4µT (4mG) or 40V/m), the screen will turn red and the indicator will be flashing, and the buzzer will alarm. If you’re testing some quiet areas, you can close the buzzer first, avoid disturbing the others..
MULTIFUNCTION: Testing average or peak value(Maximum) reading, and one key hold the data for a view. Large and back-light LCD is clear for viewing. Auto power off after 5 minutes without operation..
WIDELY APPLICATIONS: Mainly used for testing TV, computer, printer, microwave oven, refrigerator, cell towers, for low-frequency home appliances, and ghost hunting, etc..
CUSTOMER SERVICE: ERICKHILL strives to create professional and high-quality meter. We provide a 36-month after-sale service, lifetime technical support. If you have any questions, please feel free to contact us, our professional after-sales team will solve your problem in time..

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Fivota pH and TDS Meter Combo, 0.01 pH Accuracy pH Meter with ATC 0-14 pH Test Range, Temperature and TDS Test Meter Range of 0-9990ppm, 3 Meters Combo Ideal for Various Water Test Requirements

Great Value Combo fulfills all test requirements: This combo contains a pH meter and 2 TDS meters, and you can do most of the tests for liquid in one buy (pH value, temperature and TDS value of liquid)..
Upgraded pH Meter: This advanced pH tester features Automatic Temperature Compensation (ATC) function that means it will automatically compensate the temperature of solution within a range of 32～122℉. Full measurement range of pH 0 – 14 with accuracy of 0.01..
Simplified Calibration procedure: No more complex operation of using screwdriver to calibrate meter needed. What you need to do is to immerse the pH meter into the specific solution (included in the package) and then press the calibration button, and the meter will be calibrated automatically. No calibration is needed for the TDS meters..
Multifunctional TDS meters: There are 2 TDS meter in the package, and the white TDS meter can test TDS value of liquid from 0 to 9990ppm with ± 2% accuracy and also the temperature of liquid in range from 32～210℉. The blue TDS meter can test TDS value of liquid from 0 to 9999ppm with ± 2% accuracy and also the temperature of liquid in range from 32～176℉..
Wide applications: This liquid test meters combo can be used in laboratory for different kinds....

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