ReviewsDigital Frequency Modulation Meter

Nady DW-22 Dual Digital Wireless Lapel & Headset Microphone System – Ultra-low latency with QPSK modulation - XLR and ¼” outputs – UHF range - Fixed Frequency

A reliable digital wireless microphone system that is easy to setup and use – The superior sound quality of digital audio with digital QPSK modulation combined with the performance & reliability of the UHF frequency range..
State-of-the art, professional 48kHz / 24-bit digital conversion for exceptional audio clarity with transparent frequency response across the entire audible range (20Hz ~ 20kHz). The truest possible sound with undetectably low latency..
Perfect for stage performance, karaoke, public address (presentations, classes, conferences).
Reliable long range operation. Digital transmission virtually eliminates interference from nearby obstacles. Extended operating range up to 300 feet line-of-sight.
Box contents: DW-22 dual receiver (with volume control, 2 XLR mic outputs, mixed ¼” line output, power switch, LCD display and safety cable clip, two Digital LT bodypacks with LM-14-O lapel microphones and HM-3 head worn microphones, AC adapter, ¼” audio cable, manual..

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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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Voltage Tester, Auto Sleep Digital Clamp Meter Backlight Accurate Handheld Contactless for Current for Resistance(Red)

Multi Function: Clamp meter supports AC, DC span, resistance, AC frequency, AC voltage measurement, continuous measurement, with backlight..
Measuring Range: Clamp multimeter with open clamps, can measure AC current in conductors up to 26mm without interrupting the circuit..
LCD Digital Display: High accuracy digital clamp meter to measure accurately. With data hold, maximum readings, and large easy to read LCD screen..
Automatic Sleep: The digital clamp meter has a built in sleep mode. Automatically enters sleep mode after 15 minutes of inactivity to save energy..
Easy To Carry: Handheld clamp voltage tester, compact size and lightweight, easy to carry, ideal for travel. Help you easily solve electricity problems..

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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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Crystal Oscillator Frequency Counter Tester Meter, DIY 1Hz-50MHz Frequency Indicator Crystal Oscillator Tester Module Kit with 5 Digits Digital Tube Display Red

This is a frequency meter based on PIC microcontroller, with crystal vibration measurement function and programmable frequency settings..
With five-digit digital tube display, the measurement data display is intuitive and convenient..
All of them use direct-plug components. The circuit is simple, easy to make, easy to install and debug..
The measuring frequency range of this DIY frequency meter is 1Hz-50MHz, which can measure the oscillation frequency of most commonly used crystal oscillators..
Five-bit resolution (e.g. 0.0050kHz, 4.5765MHz, 11.059MHz) supports automatic range conversion..

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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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MATRIX MCR-5030 Benchtop LCR Meter Precision Digital Lab Tester for apacitance Ground Insulation Resistance Inductance Accuracy 0.1% Test Measure Inspect Multimeter （100Hz-30kHz）

【MATRIX LCR METER BENCHTOP】Precision digital lcr meter for labo voltage capacitor ground insulation resistance. It adopts 4.3-inch TFT LCD screen, 5-digit test resolution impedance meter instrument, multi-frequency points and 0.1% accuracy to meet the testing needs of various components and parameters..
【TEST PARAMETER and TWO DIFFERENT SIGNAL SOURCES】L,C, R, lZl, D, Q , X , ESR,θ(Deg),θ(Rad).30Ω,100Ω two different signal source output impedance..
【PRODUCT FEATURE】 Built-in comparator, 5-level sorting flexible pass and bad alarm mode. Shutdown automatically saves test conditions, user-friendly operation. Instrument software version, which can be upgraded through U disk. U disk screen copy, test data saving, support format FAT16, FAT32 file system. There are more than 100 sets of setting files inside, and U disk expansion can save or call multiple sets of test files..
【THREE-YEAR WARRANTY AND QUALITY CHECK】Buy Precision Digital LCR, you will get 1* Benchtop LCR Meter, 1* Power Cord, 1* Four-terminal Test Cord, 1* CD, 1* Test Report, 1* User Manual, 1 * Fuse table. We will inspect all power supplies and accessories before shipping to ensure that every customer receives a quality product with a three-year warranty policy..

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MATRIX MCR-5200 Benchtop LCR Meter Precision Digital Lab Tester for Apacitance Ground Insulation Resistance Inductance Accuracy 0.1% Test Measure Inspect Multimeter （40Hz-200kHz）

【MATRIX LCR METER BENCHTOP】Precision digital lcr meter for labo voltage capacitor ground insulation resistance. It adopts 4.3-inch TFT LCD screen, 5-digit test resolution impedance meter instrument, multi-frequency points and 0.1% accuracy to meet the testing needs of various components and parameters..
【TEST PARAMETER and TWO DIFFERENT SIGNAL SOURCES】L,C, R, lZl, D, Q , X , ESR,θ(Deg),θ(Rad).30Ω,100Ω two different signal source output impedance..
【PRODUCT FEATURE】 Built-in comparator 5-level sorting flexible pass and bad alarm mode. Shutdown automatically saves test conditions, user-friendly operation. Instrument software version, which can be upgraded through U disk. U disk screen copy, test data saving, support format FAT16, FAT32 file system. There are more than 100 sets of setting files inside, and U disk expansion can save or call multiple sets of test files..
【THREE-YEAR WARRANTY AND QUALITY CHECK】Buy Precision Digital LCR, you will get 1* Benchtop LCR Meter, 1* Power Cord, 1* Four-terminal Test Cord, 1* CD, 1* Test Report, 1* User Manual, 1 * Fuse table. We will inspect all power supplies and accessories before shipping to ensure that every customer receives a quality product with a three-year warranty policy..

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AudioControl LC2i PRO 2-Channel Line Output Converter and Tile Lost Vehicle Finder Bundle. AccuBASS LOC with Impedance Matching, GTO, Audio Signal Sense, 12V Turn-On and ACR-1 Dash Sub Remote Control

Using quartz crystal for frequency stabilization, and receiving frequency will not drift when temperature changes.
Using professional audio DSP to process and analyze audio signal, auto mute when there is no signal or week signal as big FM base noise, in order to get rid of the annoying rustle of traditional FM radio.
Advanced digital audio signal processing (DSP) and FM phase-locked loop modulation technique (PLL) ensure less sound distortion and more stable performance.
Using incremental digital 360° rotating encoder to adjust volume and frequency, which is accurate, stable, durable, and also offers comfortable hand feeling.
LCD display is more intuitive and accurate, and has very low power consumption and tiny noise interference.

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AM/FM Radio, Multifunctional Portable Shower Bathroom Hanging Music Radio Built-in Speaker Daily Waterproof Loud and Clear Sound

Function: AM/ FM radio /RDS system/ speakers and antennas,high senstivity, automatic scan stations, preset 20 radio stations..
Clear sound: the high-fidelity loudspeaker can hear clearly..
AM/FM: the signal is stable, supports frequency modulation, and has a volume adjustment knob..
Digital display: 2.4inch HD large color screen, you can view the frequency, time and date..
With a headphone jack: you can wear headphones to listen without disturbing others.Mini size, easy to carry, you can use it at home or outdoor..

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Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency

Mute function. On/Off on each microphone. Low power consumption for longer battery life. Individual microphone volume control. Cardioid pick-up pattern. Type: Handheld dynamic. Featuring a dual filter design to limit feedback and interference. Frequency Range: 500MHz-599MHz. Frequency Stability: 0.005%. Modulation Mode: UHF. Frequency Response: 50Hz-20KHz(3 dB). Dynamic Range: 96dB. S/N: 92dB. T.H.D: < 0.1%(1KHz). Delay:.

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