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Frequency Counter Meter, Portable Handheld Radio Frequency Testing, 50MHz-2.4GHz with Antenna, for DCS, CTCSS TestingAmazon$22.14
Portable Frequency Counter, Accurate RK560 50MHz-2.4GHz Frequency Counter Meter Portable Handheld Radio Frequency Testing, for Two Way Radio Walkie Talkie DecoderAmazon$22.79
Rf Frequency Counter Butt 11×8×2 Accurate Rk560 50mhz2.4ghz Frequency Counter Meter Portable Handheld Radio Frequency TestingAmazon$22.59
Oumefar 1747.5MHz Bandpass Filter 1dB Passband Stable Low Noise UMTS AWS Replacement for or Signal Testing in The 1710 to 1785 MHz Frequency RangeAmazon$9.91
RF Demo Kit, Antenna Analyzer, Radio Frequency Test Board, RF Demo Kit RF Test Module Vector Network Analyzer Board Filter/Attenuator ModuleAmazon$6.99
Amateur Ham Radio Logbook: Logbook Journal Notebook For Amateur Radio Operator Track All Communications Station Log Book Callsign Signal Wave Testing ... Radio-Wave Frequency & Power Test LogbookAmazon$7.89
Yosoo Health Gear SMA Test leads, Coaxial to Alligator, Testing Cable, Testing Wire, RF Connection Cable, 1Pcs Radio Frequency Connection Cable Red Black Test Testing Wire 52cmAmazon$7.99
Human Presence Sensing Radar Module High Sensitivity LD2410C 24G Intelligent Wave Sensor Switch 24G-24.25GHz Frequency Test Kit (Board)Amazon$23.37
Mini Gooit GY560 Radio Frequency Counter, Portable Frequency Counter Radio Frequency Measuring Tool for Testing Analog Radio Signals, Stable PerformanceAmazon$27.95
Tekpower MY64 Multimeter with AC & DC Current @ 20A,Capacitance, Frequency,Tmeperature, Transistor Test & MoreAmazon$99.00
Wholetones® 2Sleep Speaker & Music Player – Enhanced with Ancient Solfeggio Frequencies | Clinically Tested for Improved Sleep Sound | Long Battery LifeAmazon$8.16
Amateur Radio Log Book: Ham Radio Base Station Record Book, Amateur Ham Radio Contact Keeper Notebook, Radio Power Test / Wave Frequency LogbookAmazon$39.99
SeeSii TinyPFA Phase Frequency Analyzer, 4" Touch Screen 1MHz-300MHz Portable Phase Frequency Tester with MicroSD Card, Two Input Signals Testing of Oscillator/Clock Source for NanoVNA-H4 HardwareAmazon$7.90
Amateur HAM Radio Station Log Book: Designed For HAM Radio Operators TO Track Comminucations and Activities. Radio-wave Frequency & Power Test logbook ... Chart, Datachart and Antenna AnalyzerAmazon$13.59
uality Power Divider Module Directional Coupler Bridge Miniaturestrip Circuit Test Compnts for 2.3-2.5GHz Frequency Range - Ideal for RF Testing ApplicationsAmazon$34.13
BSIDE S10 Intelligent 9999 Counts Multimeter Digital LCD Display AC/DC Voltmeter Ohmmeter Test Resistance Capacitance Frequency Diode Continuity.Newegg$82.95
RF Adapter RF Receivers Transmitters RF Transceiver for Penetration Testing Working Frequency 300MHz?348MHz 387MHz?464MHz 779MHz?928MHz 2.4GHz Wireless WiFi Network ToolAmazon$35.56
XTevu Noise Signal Generator Spectrum Tracking Source 0.001-3000MHz DC 12V - High-Frequency Precision Signal Source for RF and Audio Testing - Adjustable Output Level, Frequency, and SweepAmazonSAVE $40.00
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Micsig Oscilloscope Probe ACP1000 AC Current Probe with 5ft BNC Insulated Coaxial Output Cable, Operating Frequency 10Hz-100KHz, Test Current Range 0.1A-1000AAmazon$19.52
Yctze Portable Handheld Radio Frequency Counter Meter, 50MHz-2.4GHz, Perfect for Communication and Surroundings TestingAmazon$900.00
UFD Box-LV Intelligent Ultrasonic Flaw Detector NDT Testing Equipment with 80M to 160M Sampling Frequency Compatible Win7 Win10Amazon$19.99
RF Power Meter Logarithmic Detector, High Dynamic Range ‑75dBm to 16dBm 50Hz to 3.8GHz AD8362 Radio Frequency Detection, Professional Power Meter for Testing PowerAmazon$141.10
VLIKE Noise Sound Level Meter, Digital Decibel Meter with LCD, Audio Measurement 30 dB to 130 dB, DB Meter with A and C Frequency Weighting for Sound Level TestingAmazon$51.84
Generator High Exactness, Function Generators Electrical Testing Full Touch Screen RF Sweep Dot Frequency Module Radio PC Meter Counter Control with Data Cable SMA Female (ADF4351)Amazon$1,999.00
OWON Handheld Spectrum Analyzer HSA1016-TG Frequency Range of 9 kHz up to 1.6 GHz,EMI pre-Compliance Test Function and Tracking Generator.Amazon$7.99
64C Tuning Fork Aluminum Fork Ear Fork Nervous System Testing Tuning Fork Alloy Frequency 64HZ by G.S Online StoreAmazon$177.56
UEi DL389B Digital True RMS Clamp Meter, HVAC 4000 Counts Auto Ranging Voltmeter, Measures AC & DC Volts AC Amps AC/DC Microamps Temperature Frequency Resistance Capacitance Duty Cycle NCV Diode TestAmazon$159.99
1832C LCR Meter Hantek Handheld Meter Portable Instrument to Measure The Parameters of The Component with 7 Typical Test FrequencyAmazon$66.00
Radio Frequency Plasma Spark Plug Development and Engine Testing: Design of a quarter-wave coaxial cavity resonator for use as an ignition source for an internal combustion engineAmazon$33.53
High Frequency BR-9A Electromagnetic Radiation Detector Professional Radiation Tester Digital Multimeter Voltage Voltmeter Current Ammeter Ohm Energy Power Meter Electric Test Pen Probe ResistanceAmazon$0.99
Annoying Frequencies - Hearing Test and Dog WhistleAmazon$182.77
Inverter Refrigerator Testing Instrument Tester, Variable Frequency Board Testing Instrument Solenoid Valve Repair ToolAmazon$116.86
VI Curve Tester 2 Channel, with Screen, Four Adjustable Testing Frequencies, Convenient and Safe Testing, Handheld Circuit Board Test DeviceAmazon$39.99
UNI-T UT54 Standard DMM Digital Multimeters W/ Frequency TestNewegg$2,100.00
TH2827A Digital LCR Meter with 20Hz-300kHz Continuous Test FrequencyAmazon$72.50
UNI-T UT39E 19999 Count Data Hold General DMM Digital Multimeters W/ Frequency TestNewegg$30.39
UT136B Multimeter Resistance Tester Voltmeter Digital Ohmmeter Voltage Tester Measures Current, Resistance, Frequency; Tests Diodes, TemperatureAmazon$23.09
Current Voltage Generator 4-20mA Analog Simulator Device Testing Frequency Converter Flow ValveAmazon$6.99
Quilting Treasures & Ink & Arrow "Frequency" Tv Test Patterns/Patches Priced @ 1/2 YdEtsy$14.88
HT107B Socket Tester with LCD Display Frequency Test Electric Circuit Voltage Main Fault Checker Outle Detector Breaker Finder US 90-250VAmazon$269.90
East Tester ET4401 Inductance Meter capacitance Meter Test Frequency 10 Points; Accuracy 0.1%, Support SCPI, GreyAmazonSAVE $42.00
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Testo 760-2 Digital Multimeter – Multimeter T-RMS for HVAC measurements, current, and frequency testing – voltage tester including automatic range detection, auto power off, and thermocouple adapterAmazon$170.94
Refrigerator Tester Inverter Variable Frequency Board Testing Instrument Solenoid Valve Repair Tool with Buzzer Warning, Easy Operation, Clear Screen, US Plug 110VAmazon$12.29
ljhnba Professional Equipment Adjustable Frequency Schumann Generator for Research Testing Equipment Calibration Calibration Research Engineering Sound Frequency Generator ResonatorAmazon$199.99
1833C LCR Meter Hantek Handheld LCR Meter, 0.30% Accuracy,0.3/0.6 Vrms with 10 Typical Test FrequencyAmazon$259.99
RuoShui 4090 Digital LCR Meter 10 Points (100-10K) Testing Frequency Desktop Capacitance Resistance Impedance Inductance Measure Instrument Electric Bridge Component (4090A)Amazon$59.99
Tone Generator Software for Mac - Test Tone and Sound Frequency Generator [Download]Amazon$7.24
Small Ham Radio Log Book: Amateur Radio Station Logbook, Contact Keeper Notebook, and Wave Frequency & Power Test Logbook | Mini (6"x9") Small SizeAmazon$278.37
Vintage French Oscilloscope Oscillographe Pc 774 Jeulin Amp Amperes Volage Frequency Meter Electrical Test Equipment Circa 1980's/EveEtsy$27.89
KNACRO DC 0-10V 0-20MA 4-20mA Current Voltage Signal Generator, USB Power Supply Interface Analog Simulator for PLC and Panel Debugging, Device Testing, Frequency Converter, Flow ValveAmazon$4.99
Ham Radio Log Book: Amateur Radio Operator Station Journal, Ham Radio Contact Keeper Logbook, Wave Frequency, and Power Test Log Gift for Men and WomenAmazon$2.80
staol Electrical Multimeter Test Leads for Electronic Applications Testing Automotive Accessories Durable Easy to Use Digital Multimeter Tester Amp Ohm FrequencyAmazonSAVE $205.32
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Fluke 1587 FC 2-in-1 Insulation Multimeter, True-RMS, Selectable Insulation Test Voltages Up To 1000 V, Pi/DAR Timed Ratio Tests, Measures Frequency, Includes Low-Pass Filter For Motor Drive VFDAmazon$21.99
ULTECHNOVO Digital Multimeter Voltage Detector Pocket Multimeter Multi Tester for Diode Multi Tester for Frequency Voltmeter Ohmmeter Continuity Test Diode Voltage Tester Dc Test Pencil AbsAmazon$150.79
UEi DL379B Digital Clamp Meter Auto Ranging, HVAC Current Voltage Tester w/Magnetic Mount, Measures AC Amps AC/DC Volts Temperature Capacitance Frequency Diodes Duty Cycle Continuity Resistance NCVAmazon$75.00
LyeXD Signal Generator, 110V Low Frequency Signal Generator Audio Signal Generator with Test Clip, Signal Source 10Hz-1MHz,Low Frequency Audio Signal Generator,Simple Operation, TAG-101Amazon$52.25
XHTLLO VI Curve Tester, Circuit Board Test Repair Tool, 2 Channel 4 Gear Frequency Speed Dual Signaling Input Circuit Board Test DeviceAmazon$12.12
UKCOCO Digital multimeter Frequency Electrical Repair Tool Voltmeter Digital Test Tool Meter Equipment Home Multimeter Pocket Tester Resistor Multi Meter Display Belt Handheld ElectronicAmazon$47.99
Insulation Resistance Tester GR-6688B Digital Megohmmeter for 1MΩ~200GΩ Resistance Testing, Voltage Test Range 5000V& Frequency 40~400Hz, Auto Range Voltmeter w/HV Indication &Data HoldAmazon$135.70
10CM flat Bluetooth music Tesla coil / high frequency and high voltage pulse test device / scientific experimentNewegg