ReviewsOptial Power Meter

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

【Multiple data display】This power meter is able to display measured AC volt, amp, power factor, active power, electric energy and accumulation time..
【Technical indicators】Voltage: AC 80V-300V, Current: AC 0.0-100A, Active power: 0.0-30000W, Electric energy: 0-99999kwh, Frequency: 45.0Hz–65.0Hz, Power factor: 1.000-0.000, Electric energy of cumulative time: 0.00-999.59h..
【Safe and high precision】This home electricity usage monitor features high quality ABS flame 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 A....

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Vibration Meter - Digital Precision Split Type Meter Tester HT-1201 Sensor Gauge with LCD Backlight Analyzer Acceleration Velocity Displacement Measurement for Moving Mach

【LCD Display】This Digital Precision Split Type Vibration Meter Tester has three and a half digit backlight display.LCD displays measurement result and conditions directly.It can measure the environment temperature with 2 temperature units (℃ and ℉).The default state after power on is acceleration measurement unit (m/s2). Press ▼ key to switch to (mm/s) measurement unit or displacement measurement unit (mm) At the time of measurement. - salinr.
【Widely Used】The product adopts piezoelectric type acceleration sensor and is suitable for measurement of conventional vibration of mechanical equipment. It can measure the vibration speed, acceleration, displacement and is widely used in mechanical manufacturing, electric power, chemical engineering, space flight and aviation and other fields. - vibration meter.
【Vibration Meter Tester】This Digital Precision Split Type Vibration Meter Tester adopts piezoelectric acceleration transducer transfer the vibration signal in to electrical signal, analyze the input signals, It can measure the vibration speed, acceleration, displacement.Automatic power-off time: 4 minutes.Vibration acquisition: piezoceramic accelerometer (shearing type ) - vibration meters.
【Easy to Used】The backlight starts automati....

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AUTENS AC Digital Meter AC 80-260V 100A Current Voltage Power Energy Panel Monitor (AC 100A Meter with Split Core CT)

MULTIFUNCTIONAL DIGITAL MULTIMETER: With a large-screen LCD display interface, it can display six parameters at the same time, including Voltage Current Active Power Energy Frequency and Power factor at the same time. Measuring Voltage range AC 80V-260V.
Power Factor range 0-1PF. It will be more convenient to install with a split current transformer..
OVERLOAD ALARM FUNCTION: Backlight and power will flash simultaneously to give an alarm if active power value exceeds the preset value. Alarm value can be set by yourself, but applied load should not exceed the rated power. This AC digital meter is suitable for indoor, please do not use outdoor..
POWER-OFF DATA STORAGE FUNCTION: The last test data is stored automatically when the power supply abruptly lose. No More worry about data loss due to sudden power outages. This digital meter can only measure the Active Power but not Apparent Power. If you measure power from a DC-AC inverter, please make sure it’s PURE SINE WAVE, or the meter can be burnt or melted..
ONE-BUTTON CONTROL: The button can be used to control the backlight, reset energy and preset power alarm limit. Short press the key to turn on or off the backli....

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AMTAST Digital Coffee Densitometer Coffee Concentration Refractometer Sugar Drinks Density Coffee Brix TDS Meter AMR300

Function: Coffee concentration with range of 0-25%.
Provide with suction tube and spare protective cover. The function keys are clear and easy to operate. Digital screen with large number, battery power can be displayed..
Temperature unit converting: Press key “SCALE” more than 2 seconds, meter will display Celsius or Fahrenheit..
Calibration: No need calibration every time. Drip 3~5 drops distilled water in sample plate, make sure the water and meter temperature is same and standard temperature is 20ºC, then cover it. Press key “CAL” more than 2 seconds until “CAL” flashing, press “CAL” key again, meter will display “END” and show 0.0%..
Power off: Meter will power off within one minute if no any operation..

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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

...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 automatically. The battery indicator shows the current battery level and works as a reminder for users to replace batteries in time. Three durable batteries are included, and battery life is around 14 hours with the backlight off and 8 hours with the backlight on respectively..
[What You Get] – The LONVOX decibel meter kit includes 1 x Decibel Meter, 1 x Windscreen, 1 x User Manual, and 3 x 1.5V AAA Battery. Customer services are our top priority. If there are any concerns, please feel free to contact our professional technical support team for quick assistance. We are LONVOX, and we are always here at your service!.

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HYS HF Transceiver 3-30Mhz HF Power Amp for 3-30Mhz Handheld Radio with a Mini Fan

Amp best effect Frequency range:20-30mhz.( Works on 15 meter, 12 meter and 10 meter).
Amp bellow 20Mhz the output power will be lower and vswr will be higher than 20-30Mhz.Connection of antenna is very important for low frequency....
MINI FUN FUNICATION: "High Rotaion Spead" Fan is designed for a better heat dissipation funication..
Operate voltage 13.8Vcc.Input current/POWER:14-20 A. Input power(FM/AM/CW):3-5 W Input power (SSB):2-10 W.Compact high power all mode amplifier with....
The amp different model ,such as FM,AM,SSB,CW.Please learn about how to operate when you want to purcahse.Or ask for us and give professional advice..

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AROFLY X-Elite A1 GPS Cycling/Bike Computer with Power Meter & Cadence Sensor Bundle USB Charging, FTP Examination, LCD Backlight and HR Monitor, Pedal Ratio, Bluetooth app Connect.

【Make Every Ride Count】The AROFLY X-ELITE A1 includes GPS Bike Computer + Power Meter + Cadence Sensor, providing every insight to optimize your performance for competition or training. The 2.5-inch display with ambient lighting and switchable display modes allows you to focus on your speed, power output, or any ride data when it matters the most..
【Lightest Wheel-Based Power Meter】AROFLY Power Meter is capable of measuring your accurate output while only being the size of a bottle cap, weighing less than 0.4 ounce. AROFLY Power Meter is directly installed to cycle rear valve to monitor how the output from either of your legs change along the ride and keep you focused on your performance..
【Ride and Share】Designed for athletes, AROFLY provides actionable information to set personal records most efficiently. Using the free AROFLY APP, you can easily sync your ride record to CLOUD and STRAVA to give you accurate progress status that mark epic details of every ride..
【Simple installation】Complete installation in under 10 minutes with no tools required, no modification to your drivetrain. Package contains X-ELITE A1 GPS Bike Computer, Cadence Sensor and Power Meter, suitable for most types of bike tires, including Presta & Schrader Valves. A....

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CrocSee AC 80-260V 100A CRS-022B LCD Display Digital Current Voltage Power Energy Frequency Power Factor Multimeter Ammeter Voltmeter with 100A Split Core Current Transformer

The meter can only measure the active power(real power). It doesn’t show Apparent power. If you measure power from a DC-AC inverter, please make sure it’s PURE SINE WAVE. Otherwise the meter can be burnt or melted..
The large-screen LCD can display voltage/ current/ active power/ cumulative energy/ frequency/ power factor at the same time..
Equipped with AC current transformer, donot need to buy it separately.
The CT(Inner diameter of the CT: 15mm/0.6”)can be either on Live Line or Neutral Line..
The bright blue backlight can be turned on/off manually. Store energy data when power off(can be reset).

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HFBTE LCR Meter Inductance Resistance Capacitance Tester Digital Bridge Meter with Testing Frequency 100Hz 120Hz 1KHz 10KHz 40kHz 100KHz Basic Accuracy 0.3%

LC200A portable meter is based on the LC resonant principle, adding high-speed micro-controller precision measurement calculation. The meter has wide measurement range and high precision, it's measuring range is below 1uH and 1pF. Wide measurement range, high accuracy, small size, light weight and portable..
LC200A series can be powered by mini USB cable or included Φ5 DC power supply cable. Note: The power supply voltage is 5V. You can also install 4 AA batteries to power the meter. If the meter is not used for 5 minutes when it is battery powered, it will automatically turn off the power..
There are five buttons. They are reset button in red, Hi.C, Hi.L, L/C and extended FUNC button in blue. Just press red the button to calibrate. Open circuit calibration in capacitance measuring mode. Short circuit calibration in inductance measuring mode..
Capacitance: 0.01pF-100mF. Inductance: 0.001uH-100H. Frequency: 500KHz/500Hz-50KHz. Accuracy 1% of capacitance range 1pF~1uF, 5% of range 1uF~100mF, 1% of inductance range 1uH~1H, 5% of range 1H~100H..
Package include: 1 x handheld LC meter, 2 x banana plug to alligator clip test leads, 1 x LCR kelvin alligator clip test lead, 1 x USB cable, 1 x charging cable, 1 x manual..

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INA219 High Side DC Current Sensor Breakout - 26V ±3.2A Max

【Mini Split Base Current Transformer】It's the smallest one compared to the similar products (output 100MA).Current Transformer, 100A 100mA AC Current Sensor, Split Core Amp Transformer Sensing Relay, Mini Clip-on Easy to Install CT Without Power Off. current sensor structure sensor.
【Professional Use】Current transducer used for energy meter in special.
AC 220v, 380v power supply can both be applied.plit Core Current Transformer,AC Current Sensor,Output Class Analog Sensor,Working Principle Magnetic Sensor, Useful for Measuring Whole Building Electricity Consumption.current sensing relay isolation.
【Good Mechanical Properties】Fully enclosed, good mechanical properties and environmental resistance, strong voltage isolation capability, safety and reliability..
【Snap Joint Structure】The diameter of inner hole is 16mm, the accuracy is 0.5 grade, Using snap joint structure, it can be fixed to the cable directly through nylon ties..
【Easy to use】When you fix the energy meter, you don't need to cut off the power if you use this product. Split Core Current Transformer Coil Sensor for 100A Amp Energy Meter.ac transformer amp meter amp tester.

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Retro Dual Analog VU Meter RGB Sound Level Indicator DB Panel Display

This is not a speaker, not tubed power amplifiers, no Bluetooth, not rechargeable.
It is a voice-activated VU level meter that oscillates to ambient sounds and follows the beat when there is music. There is a row of RGB lights in the middle grille that can adjust the mode and colour themselves..
Newly designed VU level meter with gold plated circuit board and backlit VU meter head. The microphone uses the same silicon microphone used on mobile phones and is extremely sensitive..
The whole unit measures 160mm x 44mm x 54mm, the power connector is Type-C, the supply voltage is 5V and the connector is located on the back for easy cable routing..
Accessories include a 1m Type-C power cable and 5V power adapter. The product is handmade and has been assembled..

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