Top Frequency Tester Reviews

Allprettyall EMF Meter Rechargeable Electromagnetic Radiation Detector for Testing Ghost, Magnetic Field, Electric Field Radiation and Ambient Temperature, Sound-Light Alarm, Max/Average Value Lock

NO RF DETECTOR - The EMF tester has more uses than other's tester, testing the magnetic field radiation with optional units mg/µt, the electric field with unit v/m and ambient temperature with 2 units ℃/℉. More uses in the EMF tester can help you check out whether the place is radiation-free and constant temperature.
ONLY FOR ELECTRIC DEVICE - The detected data can be locked and the maximum data can be locked at the same time. LCD display can be turned on and off, and there is a flashlight and hole for connecting the tripod on the back of the tester.
LARGER FREQUENCY RANGE - The measurement frequency range is larger up to 5HZ—3500MHz, getting more accurate measurement of daily home appliances: TV, mobile phones, computer, refrigerator, induction cooker, electrical wires, etc.
SOUND-LIGHT INDICATOR - When the test result exceeds the safe value(003e 4.0 mG / 003e 0.4µT/003e 40 V/M), EMF tester will alarm with sound and light. The sound frequency of the alarm will be stronger and the light is turned red from green as the increase of radiation value.
WHAT YOU GET - 1 x EMF Meter, 1 x 9V Battery, 1 x User manual (Just contact us or send it back for a full refund, our customer service will solve it in time).

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OCESTORE Crystal Oscillator Tester Frequency Counter Tester Meter 1Hz-50MHz Cymometer Measurement Tester Module LED DIY Kit

【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
All in-line components, easy to install and debug..
【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..

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TENMA 72-9385 MODERN DIGITAL MULTIMETER

【High-precision Auto Ranging】 This IKOVWUK voltage tester measures AC/DC voltage from 600mv to 600V, current from 600μA to 10A, resistance from 600Ω to 60MΩ accurately. You can also use it for continuity, diode, temperature, frequency, capacitance and live wire test. CAT III 600V safety rating and double fuses provide overload protection..
【Fully Functioned】 This voltmeter can be used to measure AC/DC current, AC/DC voltage, resistance, frequency, duty cycle, capacitance, continuity, diode, and temperature. It is not only a voltage tester.
but also a multi-tester such as a circuit tester and electric meter..
【6000 Counts True-RMS Display】 New generation high accuracy chip, updated software and TRUE RMS(root mean square), provides higher range and more accurate readings, which makes this digital multimeter become an excellent helper for electrical test..
【User-friendly Design】 Equipped with backlight screen, flashlight, support stand and test leads holder, this voltage meter is really helpful for testing automotive and household electrical problems..
【Considerate Service】The package of this ohmmeter included 1 pair of test leads,1 pair of K-type test leads, 1 screwdriver, 1 storage bag, and 2 AAA batteries. Our brand IKOVWUK also pr....

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CMTOOL Power Circuit Probe Kit 9-30V Automotive Circuit Tester, Test Light Automotive Relay Tester Kit, Car Electrical Tester Digital Voltage Tester Continuity Tester Tool with 6m/20ft Extension Cable

...ive polarity of the detected circuit (red light is positive, green light is negative)..
3.【Automotive Circuit Tester with Digital Multimeter Mode】Automotive circuit tester contains the common parameters of multimeters, and can quickly test the DC voltage, resistance, and diode in the circuit system, current, and frequency, bringing a lot of convenience to users..
4.【Electrical Tester with Oscilloscope Function】Circuit probe tester with 6M extension test lead, can display the parameter curve diagram of the tested component, such as voltage, frequency, time, etc. Users also can observe the test results more directly by adjusting the displayed interval..
5.【Power Circuit Tester Kit with Component Activation Function】There is 4 activation modes for the component activation function of the automotive probe tester, which can generate "activation" signals for components, such as lights, motors, and other in-vehicle electronic devices..
6.【Power Circuit Probe Tester for Relay Test & Injector Test】Automotive relay tester function: able to test common automotive relays, such as 5-port relays and 4-port relays. Injector test function: 4 types of pulse models can be output to the injector to better detect the condition of the injector..

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WGGE AC Voltage Tester/Non-Contact Voltage Tester with Dual Range AC 12V-1000V/48V-1000V, Electrical Pen with LCD Display and Flashlight Buzzer Alarm, Detect Wire Breakpoint, Live/Null Wire Tester

...insulation, The tester will flash and beep when the device close to AC Voltage greater during the specified Voltage range without touch the measured object, to ensure the safety of the human body, more convenient monitoring..
Safely Sound & light Alarm Tester Pen- distinguish the live and Null wire through different frequency alarm sound. The higher the voltage, the higher the audible alarm frequency and rate of flashing lights great, even in noisy environments..
Accurately Multi-ranging Measurement - The electrical tester accurately detects AC Voltage ranging from 12V to 1000V, and distinguish them into 3 Voltage levels (low, moderate, high). NCV sensitivity automatically adjusts from low, medium and high while indicating Voltage level with audible beep..
Low Voltage Indicator & LED Light - The shining prompt of low voltage LED and alarm of the power tester pen can warn you to replace the battery in time, while the LED light allows operation even in dark environment..
Auto Power Off Tester -The electrical tester operated with 2 x 1.5V AAA batteries(not included), auto power off after no operation for 3 minutes to save energy. Lightweight, durable construction with convenient pocket clip, a perfect handy tool for electricians or daily use..

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Amprobe AT-8020 Advanced Industrial Wire Tracer Kit

【FUNCTION UPGRADE】 KZYEE KM50 Circuit Tester Kit is an upgraded version of KM10, which performs each type of testing modes, like DC Voltage, AC Voltage, Signal Frequency, Duty Cycle, Fuel Injection, Resistance, and Diode.
【QUICK DIAGNOSIS】Quicker troubleshoot and diagnose circuit conditions by switching waveform display from the digital display for AC Voltage, Frequency, Duty Cycle, and Fuel Inject testings by long-pressing the mode button for 3 seconds.
【WIDELY APPLICATION】Works on 12V 100-2000CCA lead acid batteries , including Regular Flooded, AGM Flat Plate, AGM Spiral, GEL and EFB. Also, it is suitable for cars, motorcycles, trucks, ATVs, SUVs, boats, yachts, mowers, and even golf carts and lawn tractors batteries.
【CRANKING & CHARGING SYSTEM TEST】Presents you with the test results (actual cranking voltage & cranking time) of the starter system in milliseconds to indicate if the cranking system is working as expected. Also, the battery load tester conducts a throughout check on the 12V charging system to make sure a normal generator output，perfectly working rectifier diode and under controlled charging current.
【SAFE PROTECTION DESIGN】The battery tester doesn’t emit light, heat or spark, and won’t discharge the battery. It ....

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Power Probe ECT3000B ECT 3000 Box

【Overload Protection for Longer Life】Auto circuit breaker protect the tool from overload through the inner circuit breaker to enables product last....
【4 Adjustable Modes probe tester】AC detects the maximum and minimum voltage, supply frequency and duty cycle of the circuit under test.
【Easy to Operate】Power probe built-in head light allow you to work in the dark area, there will be beep tone when detecting,operate the tool....
【WIDE Vehicles Application】 Power probe tester can support 6-30V cars, boats, trailers, ATV, motor homes and many other vehicles. With the ability....
【3-YEAR WARRANTY Circuit Tester】 For damages caused by non-human factors, AUTOOL promise to resend power probe circuit tester parts for free....

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TopDiag P200 Automotive Circuit Tester, Power Circuit Probe Kit, 9~30V with Multimeter/Relay/Fuel Injector Tester/Activating Component/0~5V Power with 20ft Cable for 12V 24V Vehicle

【Multimeter & Oscilloscope Tester】The P200 Circuit tester will be the more versatile and powerful Power Circuit Probe Kit you've ever seen. Contains the multimeter's DC voltage (VDC), resistance (OHM), diode/on-off test (DIO), current (AMP) and frequency test functions, combined with the unique oscilloscope function and buzzer, can test components according to voltage, resistance value, frequency duty cycle, and waveform diagrams to quickly diagnose problems with your circuit system..

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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

... down “Enter” key to turn on/off the back light.During the measurement process, press “Esc/Max” key, the screen displays “MAX”, indicating that the function is enabled. The top of the screen always displays the maximum reading. Press the “Esc/Max” key again to close the functions. When the vibration frequency exceeds 1KHz, it will switch to acceleration measurement automatically and display high frequency prompt. - vibration an.
【Excellent Design】This Digital Precision Split Type Vibration Meter Tester is very lightweight and it comes with one travel case, perfect for easy storage and taking anywhere. This Vibration Meter Tester uses high-strength ABS material for durability.The body of this carbon monoxide detector is ergonomically designed for comfortable grip and more convenient for your use. - vibration meter.

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Globact RC Digital Servo Tester/ESC Consistency Tester for RC Helicopter Airplane Car(Servo Tester,ESC Consistency Tester,RC Helicopter Tester Tool)

【High Srecision】The RC ESC tester used to compare the performance steering gear control of the steering servo output signal can be accurate to 2us (1 milliseconds = 1000 microseconds).
【Button The Select】 (Note: the key switch function, circulation patterns) 1. S-1 manual mode (Manual) 2.S-2-bit mode (Neutral) 3.S-3 automatic mode (Automatic).
【Keys Pulse Width】1. 50H analog servo signal cycle 20us frequency 50Hz, 2. 125H digital the steering gear a signal cycle 8us frequency 125Hz,3. 250H Digital Servo signal cycle 4us frequency 250Hz.
【Powerful Testing Function】RC plane servo tester can test the steering gear is able to respond to subtle changes With PPM signal test function in the display.
【How To Use】Digital or analog signal button selects the corresponding servo system and then plugs into the steering servo to avoid damage to the steering servo.

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Keeptop Non-Contact Voltage Tester - Electrical Tester with Dual Range AC 12 to 1000V, Live/Null Wire and Circuit Tester, Voltage Detector with Flashlight and Pocket Clip

Super Large LCD Screen -- Compared with other voltage testers, our screen is 6.6 larger than their testers, and the high resolution screen will show 3 test results, such as the volt, frequency and analog bar.
Non-Contact & 8 LED Indicators -- Non contact voltage detection ensures the safety of testing, and 8 LED Indicators in 3 colors display (Green, Yellow, Red) help to distinguish the detected voltage intensity easily.
Auto-ranging Digital Multimeter -- Designed for the novice. Plug the test leads only, the multimeter tester can smart to test voltage DC or AC frequency, resistance, as well as continuity.
Perfect Helper for Electrical Issues -- SUETTLA X1 Volatge tester arrive CAT II 600V safety level, help to detect the null/live wire, breakpoint locate, AC/DC volts testing, Ohm measure etc, to save the high service fees..
Fastest Reading Speed -- With upgraded chips, greatly increase the sensitivity, make the voltage multimeter tester measuring in 0.2s (5 times/s).

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Extech CT70 AC Circuit Load Tester

AC Load Tester, Selectable loads of 12, 15 and 20 Amps.
Displays Peak Line Voltage and Frequency, Outlet Tester functions, Neutral to Ground Voltage.
Measures loaded and unloaded AC Line Voltage.
GFCI Trip Time, GFCI Trip Current, Open or Reversed wiring.Complete with AC test cord.

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Armada Technologies Pro48K Multi-Function Irrigation Test Kit with Tone Probe and Case

【Overload Protection for Longer Life】Auto circuit breaker protect the tool from overload through the inner circuit breaker to enables product last longer and durable..
【4 Adjustable Modes probe tester】AC detects the maximum and minimum voltage, supply frequency and duty cycle of the circuit under test.
DC detects the voltage value of the circuit under test.
In addition,the circuit tester can also detects the resistance between the circuit probe under test and the auxiliary ground.
Diode Test can quickly test the operation of the diode assembly and determines if it is conducting..
【Easy to Operate】Power probe built-in head light allow you to work in the dark area, there will be beep tone when detecting,operate the tool without looking at the menu once you are familiar with the tone.Provide 4.9ft of electrical wire for easy use..
【WIDE Vehicles Application】 Power probe tester can support 6-30V cars, boats, trailers, ATV, motor homes and many other vehicles. With the ability to power components such as radiator fans, starter motors, relays, window regulators, windshield wipers, etc. Powered by the car battery or cigarette lighter, no extra battery or cable required.
【3-YEAR WARRANTY Circuit Tester】 For damages caused by non-human factors....

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