Reviews Frequency Measurement Tool

[2022 Upgraded] AURSINC NanoVNA-H4 V4.3 Vector Network Analyzer 10KHz-1.5GHz HF VHF UHF 4'' Portable Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart

  • ...[2022 Upgraded Nanovna-H4 HW V4.3 ] Latest features: with latest HW 4.3 version, Nanovna-H4 is added a brand new panel plus added a new SD port for data storage(support up to 32GB memory card, not included in the package). The NanoVNA-H4 vector network analyzer is a Hugen Origin that provides perfect vector network measurement capabilities, tiny and handheld, stand-alone with 4-inch LCD display, portable with 1950mAh battery powered or USB powered.
  • ✔️[Improved Frequency Algorithm] The improved frequency algorithm of NanoVNA-H4 can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides better than 70dB dynamic, The extended 300M-900MHz band provides better than 60dB of dynamics, and the 900M-1.5GHz band is better than 40dB of dynamics.
  • The metal shield is designed to reduce the external interference and improve the measurement accuracy.
  • ✔️[Antenna Performance Measurement] The default firmware main function for NanoVNA-H4 vector network analyzer is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring....
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UNI-T UT210E Mini Digital Clamp Meter Handheld RMS AC/DC Resistance Capacitance Tester

  • Handheld clamp meter for taking voltage and frequency measurements.
  • Compact size makes it easy to access hard-to-reach areas and compartments.
  • Backlit LCD display for viewing and accessing measurements.
  • Included components: test leads, carrying case, temperature probe, temperature probe connector, two 1.5V AAA batteries, user manual.
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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

  • Non-contact AC Voltage Measurement Tester - probe type induction, plastic 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 pocke....
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Mastech MS2108A Auto Range DC AC Current Digital Clamp Meter Multimeter Voltage Frequency Meter

  • Perform measurements of ac/dc voltage and current, resistance, capacitance, frequency, duty cycle, diode and continuity test.
  • Measuring frequency, ac/dc current and duty cycle by clamp. Relative value measurement and auto range function.
  • Data holding, to hold the readings while taking measurement. Maximum and minimum value measuring and holding.
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ICQUANZX Upgraded 60MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (60MHz)

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened..
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high-speed MCU microprocessor. The internal circuit adopts the active crystal oscillator as the benchmark. So the signal stability is greatly strengthened..
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Saw toothwave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce.The frequency output of Sine wave can be up to 15MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Koolertron 60MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (60MHz)

  • ...evel, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, Sine Pulse, Lorentz Pulse, and 60 kinds user defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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Koolertron 15MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (15MHz)

  • ...evel, Half-wave, Full-Wave, Pos-Ladder, Neg-Ladder, Noise, Exponential Rise, Exponential Fall, Tone, sine pulse, Lorentz Pulse, and 60 kinds user defined waveform etc. each channel can be independently set the parameters..
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function..
  • Storage feature: You can store 100 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 15MHz. 266MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits.
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research..
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XUNTOP EMF Meter Reader EMF Detector Handheld Digital Electromagnetic Field Radiation Detector with LCD Backlight Sound-Light Alarm Max Average Value Lock for Home Office Industrial Site

  • ...nient to Use】Data retention to lock Peak Value (Maximum)/Average Value by one key for review. It is a good helper to check out whether the place is radiation-free. Measure both magnetic field radiation and electric field radiation at same time clearly and accurately. One-handed operation, easy to move for on-site measurements, effectively identify the signal source and locate the signal position. Auto power off after 5 minutes without operation.
  • 【High Sensitivity with Large Screen 】This compact and light EMF meter is high sensitivity. Radiation assessment is equipped with a built-in magnetic radiation sensor to display the radiation value on the digital LCD screen after processing by control micro-chip. The EMF Reader screen has visual clarity with large digits and LCD display, backlight can be easy to turned on and off, even if in dark or sunshine, the readings still could be easily seen.
  • 【Larger Frequency Range & Wide Applications】The measurement frequency range is larger up to 5HZ—3500MHz, obtaining more accurate measurement of daily household appliances. Also this EMF tester is a compact to use while travel. It is an aid-on analysis tool for para....
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