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FaucetsSafety Equipment and GearAir QualityAir ToolsAlarm SystemsAll Home SecurityAsphalt, Concrete & MasonryBathroom Cabinets & FixturesBathroom PlumbingBreakers, Distributors, and Load CentersCable ManagementCaulking & SealantsChains, Ropes and TiedownsCommercial LightingDehumidifiersDimmers, Switches, and Wall PlatesDoor HardwareDoor Security HardwareDoor WeatherproofingDoorbellsElectrical ToolsElectrical Wire & CableElectronic Communication ComponentsEmergency SuppliesEmersonExtension CordsFastenersFire SafetyFlashlightsGarage Door Openers and HardwareGate HardwareGuttering & DrainageHand ToolsHingesHome SafetyHVAC Ducting and VentilationKitchen Fixtures and MaterialsKitchen HardwareKitchen PlumbingLight BulbsMechanics ToolsMounting ProductsOutletsPaint Supplies & ToolsPersonal PreparednessPlasma CuttersPlug AdaptersPower Tool AccessoriesPower ToolsPower TransformersPressure WashersPro ToolsRoofingSafety DetectorsSealants, Fillers and AdhesivesSolderingStorm & Flood PrepSurveillanceTestersThermostatsTool Equipment & StorageValves & Valve RepairWater FiltersWater HeatersWater Heaters, Pumps & TanksWeatherstrippingWeldersWelding & Cutting AccessoriesWildfire PrepWindow WeatherproofingWinter PrepWoodworking Tools
Frequency Meter(454)
Uses item details. Price when purchased online
Briidea Electricity Usage Monitor, 4-Outlet Power Consumption Watt Voltage Amp Meter Tester, Real-Time Energy Analyzer with Backlit LCD, Overload Alerts, Memory Function for Home Appliances $49.99
Sponsored
$4999
current price $49.99Briidea Electricity Usage Monitor, 4-Outlet Power Consumption Watt Voltage Amp Meter Tester, Real-Time Energy Analyzer with Backlit LCD, Overload Alerts, Memory Function for Home Appliances
ERICKHILL 3 in 1 EMF Detector, Electromagnetic Field Radiation Detector for EF, RF, MF, WiFi,5G Signal,Triple Alarm Modes, Type-C Charging, EMF Meter for Home, Office, and Paranormal Investigation $46.54
Sponsored
$4654
current price $46.54ERICKHILL 3 in 1 EMF Detector, Electromagnetic Field Radiation Detector for EF, RF, MF, WiFi,5G Signal,Triple Alarm Modes, Type-C Charging, EMF Meter for Home, Office, and Paranormal Investigation
4.9 out of 5 stars
Proster Digital Clamp Meter, 600A AC/DC Current 600V AC/DC Voltage Tester - NCV, Capacitance, Resistance, Frequency, Diode & Continuity Test $36.99
Sponsored
$3699
current price $36.99Proster Digital Clamp Meter, 600A AC/DC Current 600V AC/DC Voltage Tester - NCV, Capacitance, Resistance, Frequency, Diode & Continuity Test
4.4 out of 5 stars
ERICKHILL EMF Detector, 3‑in‑1 Portable EMF Meter and Radiation Detector for RF, EF, MF, WiFi Signal– EMF Reader with 3-Color Sound‑Light Alarm, Rechargeable Battery for Home, Office & Ghost Hunting $45.99
Sponsored
$4599
current price $45.99ERICKHILL EMF Detector, 3‑in‑1 Portable EMF Meter and Radiation Detector for RF, EF, MF, WiFi Signal– EMF Reader with 3-Color Sound‑Light Alarm, Rechargeable Battery for Home, Office & Ghost Hunting
5 out of 5 stars
Clearance, STORGENER Digital Clamp Meter Multimeter 4000 Counts Auto-ranging Amp Tester Measuring AC/DC Voltage & Current, Resistance, Capacitance, Frequency, Continuity, NCV Detection Was $29.99
Clearance
STORGENER Digital Clamp Meter Multimeter 4000 Counts Auto-ranging Amp Tester Measuring AC/DC Voltage & Current, Resistance, Capacitance, Frequency, Continuity, NCV Detection
4.1 out of 5 stars
Digital Frequency Meter Featuring Wide Ranging 20MHz to 2.7GHz and High Resolution Clear Screen for Radio Analysis $20.76
$2076
current price $20.76Digital Frequency Meter Featuring Wide Ranging 20MHz to 2.7GHz and High Resolution Clear Screen for Radio Analysis
Milue 110~380V AC Frequency Meter HZ Meter Tester Measuring Range 20-75Hz Durable
Milue 110~380V AC Frequency Meter HZ Meter Tester Measuring Range 20-75Hz Durable
5 out of 5 stars
Homena 50Mhz To 2400Mhz Frequency Counter Frequency Counter Frequency Counter Gray Mini Handheld Gy560 Meter Tester Gray Mini $26.01
$2601
current price $26.01Homena 50Mhz To 2400Mhz Frequency Counter Frequency Counter Frequency Counter Gray Mini Handheld Gy560 Meter Tester Gray Mini
TOPMAO Square Signal Generator 1-150KHz PWM Pulse Frequency Cycle Duty Adjustable Meter
2 options
Available in additional 2 optionsTOPMAO Square Signal Generator 1-150KHz PWM Pulse Frequency Cycle Duty Adjustable Meter
In 25+ people's carts, Onemayship 5 LED EMF Meter Magnetic Field Ghost Hunting Paranormal Equipment Tester Portable Counter $11.94
In 25+ people's carts
$1194
current price $11.94Onemayship 5 LED EMF Meter Magnetic Field Ghost Hunting Paranormal Equipment Tester Portable Counter
4.4 out of 5 stars
TriField TF2 comes with a 9-volt Portable Battery. Accurate Readings EMF Meter. Reads 5G, cell phones, powerlines, etc. $186.00
Sponsored
$18600
current price $186.00TriField TF2 comes with a 9-volt Portable Battery. Accurate Readings EMF Meter. Reads 5G, cell phones, powerlines, etc.
3.8 out of 5 stars
ERICKHILL EMF Meter, Detects Electric and Magnetic Fields, Handheld Digital EMF Detector with LCD Display, Sound-Light Alarm, Rechargeable Battery for Home, Office, and Appliances (Blue) $39.99
Sponsored
$3999
current price $39.99ERICKHILL EMF Meter, Detects Electric and Magnetic Fields, Handheld Digital EMF Detector with LCD Display, Sound-Light Alarm, Rechargeable Battery for Home, Office, and Appliances (Blue)
4.8 out of 5 stars
Milwaukee 2217-20 - True-RMS Digital Multimeter (AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Continuity Test, Temperature Measurement) $87.00
$8700
current price $87.00Milwaukee 2217-20 - True-RMS Digital Multimeter (AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Continuity Test, Temperature Measurement)
3.5 out of 5 stars
RANMEI Advanced 220V 100A Electric Energy Frequency Meter With Fire Retardant Shell $15.79
$1579
current price $15.79RANMEI Advanced 220V 100A Electric Energy Frequency Meter With Fire Retardant Shell
Proster Clamp Meter - TRMS 6000 Counts 800A DC/AC Current 600V DC/AC Voltage NCV Continuity Capacitance Resistance Frequency Diode Hz Test Auto Range Backlit Flashlight with Storage Bag $36.85 Was $40.99
Now$3685
current price Now $36.85, Was $40.99$40.99
Proster Clamp Meter - TRMS 6000 Counts 800A DC/AC Current 600V DC/AC Voltage NCV Continuity Capacitance Resistance Frequency Diode Hz Test Auto Range Backlit Flashlight with Storage Bag
3.8 out of 5 stars
Frequency Meter,10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter 0.000 001Hz Resolution $15.46
$1546
current price $15.46Frequency Meter,10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter 0.000 001Hz Resolution
Brynna MeterMeter Accurate RK560 50MHz-2.4GHz Frequency Counter Meter Portable Handheld Radio Frequency Testing $19.58
$1958
current price $19.58Brynna MeterMeter Accurate RK560 50MHz-2.4GHz Frequency Counter Meter Portable Handheld Radio Frequency Testing
Best seller, SMLCON Digital Clamp Meter Multimeter Tester 4000 Counts NCV AC Current 600V $18.84
Best seller
$1884
current price $18.84SMLCON Digital Clamp Meter Multimeter Tester 4000 Counts NCV AC Current 600V
5 out of 5 stars
Digital Frequency Meter 10-99.9Hz, AC50-500V, 0.56in LED Display, Hz Counter for Electronics, Cymometer $8.71
$871
current price $8.71Digital Frequency Meter 10-99.9Hz, AC50-500V, 0.56in LED Display, Hz Counter for Electronics, Cymometer
Digital EMF Meter Electromagnetic Field Radiation Detector RF Electric Magnetic Field Tester LCD Display with Sound Alarm Peak Average Data Hold Backlight for Home Office $20.88
$2088
current price $20.88Digital EMF Meter Electromagnetic Field Radiation Detector RF Electric Magnetic Field Tester LCD Display with Sound Alarm Peak Average Data Hold Backlight for Home Office
Neoteck Digital Multimeter Auto Range AC DC Voltmeter Ammeter Backlight Tester With Protective Orange Shell with Stand Built $29.70
Sponsored
$2970
current price $29.70Neoteck Digital Multimeter Auto Range AC DC Voltmeter Ammeter Backlight Tester With Protective Orange Shell with Stand Built
5 out of 5 stars
Proster Clamp Meter - TRMS 6000 Counts 800A DC/AC Current 600V DC/AC Voltage NCV Continuity Capacitance Resistance Frequency Diode Hz Test Auto Range Backlit Flashlight with Storage Bag $36.85 Was $40.99
Sponsored
Now$3685
current price Now $36.85, Was $40.99$40.99
Proster Clamp Meter - TRMS 6000 Counts 800A DC/AC Current 600V DC/AC Voltage NCV Continuity Capacitance Resistance Frequency Diode Hz Test Auto Range Backlit Flashlight with Storage Bag
3.8 out of 5 stars
Handheld Digital Frequency Meter Counter, Remote Control Frequency Tester for Electric Lock, Garage Door, Access Control $14.85
$1485
current price $14.85Handheld Digital Frequency Meter Counter, Remote Control Frequency Tester for Electric Lock, Garage Door, Access Control
Crystal Oscillator Frequency Counter Tester 5 Digits High Precision Digital Frequency Meter Module DIY $10.68
$1068
current price $10.68Crystal Oscillator Frequency Counter Tester 5 Digits High Precision Digital Frequency Meter Module DIY
Mixfeer 3in1 Multifunctional Electric Field Magnetic Field Radiation Detector Handheld Electromagnetic Radiation Tester EMF Meter Portable Radio Frequency Detect Meter $26.99
$2699
current price $26.99Mixfeer 3in1 Multifunctional Electric Field Magnetic Field Radiation Detector Handheld Electromagnetic Radiation Tester EMF Meter Portable Radio Frequency Detect Meter
ERICKHILL 3 in 1 EMF Detector, Electromagnetic Field Radiation Detector for EF, RF, MF, WiFi,5G Signal,Triple Alarm Modes, Type-C Charging, EMF Meter for Home, Office, and Paranormal Investigation $46.54
$4654
current price $46.54ERICKHILL 3 in 1 EMF Detector, Electromagnetic Field Radiation Detector for EF, RF, MF, WiFi,5G Signal,Triple Alarm Modes, Type-C Charging, EMF Meter for Home, Office, and Paranormal Investigation
4.9 out of 5 stars
ERICKHILL EMF Detector, 3in1 Portable EMF Meter and Radiation Detector for RF, EF, MF, WiFi Signal EMF Reader with 3-Color SoundLight Alarm, Rechargeable Battery for Home, Office & Ghost Hunting $45.99
$4599
current price $45.99ERICKHILL EMF Detector, 3in1 Portable EMF Meter and Radiation Detector for RF, EF, MF, WiFi Signal EMF Reader with 3-Color SoundLight Alarm, Rechargeable Battery for Home, Office & Ghost Hunting
5 out of 5 stars
Proster Digital Clamp Meter, 600A AC/DC Current 600V AC/DC Voltage Tester - NCV, Capacitance, Resistance, Frequency, Diode & Continuity Test $36.99
$3699
current price $36.99Proster Digital Clamp Meter, 600A AC/DC Current 600V AC/DC Voltage Tester - NCV, Capacitance, Resistance, Frequency, Diode & Continuity Test
4.4 out of 5 stars
AstroAI Digital Multimeter, TRMS 4000 Counts Volt Meter Manual and Auto Ranging $22.99
$2299
current price $22.99AstroAI Digital Multimeter, TRMS 4000 Counts Volt Meter Manual and Auto Ranging
4.1 out of 5 stars
Handheld Remote Control Wireless Frequency Meter Digital Counter Tester 250-450MHz for Car Auto Garage Door,1 X Frequency Detector 1 Cord(not including power supply),As Shown $17.99
$1799
current price $17.99Handheld Remote Control Wireless Frequency Meter Digital Counter Tester 250-450MHz for Car Auto Garage Door,1 X Frequency Detector 1 Cord(not including power supply),As Shown
VEVOR Digital Multimeter, 4000-Count TRMS DC/AC Voltmeter Current Tester, Auto-Ranging Multimeter for Current Voltage Resistance Capacitance Temperature Diodes Continuity Duty-Cycle Measurments $26.90
Sponsored
$2690
current price $26.90VEVOR Digital Multimeter, 4000-Count TRMS DC/AC Voltmeter Current Tester, Auto-Ranging Multimeter for Current Voltage Resistance Capacitance Temperature Diodes Continuity Duty-Cycle Measurments
4 out of 5 stars
Neoteck 6000 Counts TRMS Multimeter Rechargeable Auto-Ranging Volt Meter for AC/DC Voltage & Current Electric Meter Tester with Color Screen $28.99
Sponsored
$2899
current price $28.99Neoteck 6000 Counts TRMS Multimeter Rechargeable Auto-Ranging Volt Meter for AC/DC Voltage & Current Electric Meter Tester with Color Screen
2 Channel PWM Signal Generator 150kHz Adjustable Duty Cycle Phase Square Pulse Wave Frequency Meter $27.49
$2749
current price $27.492 Channel PWM Signal Generator 150kHz Adjustable Duty Cycle Phase Square Pulse Wave Frequency Meter
Zyllora Compact Frequency Meter AC Voltage Meter Digital Display Combination Instrument 1 PC CH72-VA $17.79
$1779
current price $17.79Zyllora Compact Frequency Meter AC Voltage Meter Digital Display Combination Instrument 1 PC CH72-VA
TD201 Digital Clamp Meter Multimeter Tester, 4000 Counts NCV Ampere Ohmic Voltage Measurement AC Current, AC/DC Voltage, Capacitance, Resistance, Diode, Continuous Frequency Backlit Electrical Tools $25.00
$2500
current price $25.00TD201 Digital Clamp Meter Multimeter Tester, 4000 Counts NCV Ampere Ohmic Voltage Measurement AC Current, AC/DC Voltage, Capacitance, Resistance, Diode, Continuous Frequency Backlit Electrical Tools
BSIDE A1 Multimeter LCD Digital Tester Voltage Detector 2000 Counts DCAC Voltage Frequency Resistance NCV Continuity Live Wire Neutral Wire Check True RMS Meter $19.99
$1999
current price $19.99BSIDE A1 Multimeter LCD Digital Tester Voltage Detector 2000 Counts DCAC Voltage Frequency Resistance NCV Continuity Live Wire Neutral Wire Check True RMS Meter
1 out of 5 stars
GQ EMF-390 recommendation: EMF ELF RF meter, 5G Cell Tower Smart meter, Wi-Fi Signal Detection Black $119.80
$11980
current price $119.80GQ EMF-390 recommendation: EMF ELF RF meter, 5G Cell Tower Smart meter, Wi-Fi Signal Detection Black
4.4 out of 5 stars
Digital Meter Multifunction Voltmeter Ammeter Frequency Meter 120A AC 50-500V $14.05
$1405
current price $14.05Digital Meter Multifunction Voltmeter Ammeter Frequency Meter 120A AC 50-500V
UNI-T Uni-trend Multimeter clamp meter Digital clamp meter UT210A True RMS Multimeter Capacitor Frequency Resistance Tester Voltmeter Current clamps(UT210A) $47.00
$4700
current price $47.00UNI-T Uni-trend Multimeter clamp meter Digital clamp meter UT210A True RMS Multimeter Capacitor Frequency Resistance Tester Voltmeter Current clamps(UT210A)
AstroAI Digital Clamp Meter Multimeter 4000 Counts Auto-ranging Amp Voltage Tester $41.40
$4140
current price $41.40AstroAI Digital Clamp Meter Multimeter 4000 Counts Auto-ranging Amp Voltage Tester
4.7 out of 5 stars
ERICKHILL EMF Meter, Detects Electric and Magnetic Fields, Handheld Digital EMF Detector with LCD Display, Sound-Light Alarm, Rechargeable Battery for Home, Office, and Appliances (Blue) $39.99
$3999
current price $39.99ERICKHILL EMF Meter, Detects Electric and Magnetic Fields, Handheld Digital EMF Detector with LCD Display, Sound-Light Alarm, Rechargeable Battery for Home, Office, and Appliances (Blue)
4.8 out of 5 stars
POROMETISTO ET01Pro 5-in-1 EMF Detector & RF Meter, Tri-Axis Sensor, 30MHz~8GHz, Rechargeable with Temp/Humidity, for Home/Office/Industrial $38.99
$3899
current price $38.99POROMETISTO ET01Pro 5-in-1 EMF Detector & RF Meter, Tri-Axis Sensor, 30MHz~8GHz, Rechargeable with Temp/Humidity, for Home/Office/Industrial
5 out of 5 stars
EMF Meter, Electromagnetic Radiation Detector, Digital LCD EMF Detector, EMF Tester for Ghost Hunting, Home, Office, Outdoor, Indicator Lights, Audible Alert $25.99
$2599
current price $25.99EMF Meter, Electromagnetic Radiation Detector, Digital LCD EMF Detector, EMF Tester for Ghost Hunting, Home, Office, Outdoor, Indicator Lights, Audible Alert
4 out of 5 stars
XUBIYM Multimeter 600V Clamp Amp Meter with Non Contact Voltage Tester Kit|Measures Ac/Dc Volatage,Current,Ncv,Continuity,Frequency,Diode,Capacitance Electric Wire Detector $23.94
$2394
current price $23.94XUBIYM Multimeter 600V Clamp Amp Meter with Non Contact Voltage Tester Kit|Measures Ac/Dc Volatage,Current,Ncv,Continuity,Frequency,Diode,Capacitance Electric Wire Detector
SMART SENSOR ST1393 EMF Meter Electromagnetic Field EMF Detector Handheld Digital LCD Electromagnetic Field Radiation Tester $20.99
$2099
current price $20.99SMART SENSOR ST1393 EMF Meter Electromagnetic Field EMF Detector Handheld Digital LCD Electromagnetic Field Radiation Tester
4.4 out of 5 stars
EMF Detector, 4in 1 EMF Radiation Meter with Curve Mode, Rechargeable EMF Reader Electromagnetic Field Radio Frequency Detector for Home, Office, Hunting $44.99
$4499
current price $44.99EMF Detector, 4in 1 EMF Radiation Meter with Curve Mode, Rechargeable EMF Reader Electromagnetic Field Radio Frequency Detector for Home, Office, Hunting
POROMETISTO 3-in-1 EMF Meter, 5G RF/EF/MF Radiation Detector with Backlit LCD, Sound & Light Alarm, Ghost Hunting Paranormal Detector for Home and Office $45.99
$4599
current price $45.99POROMETISTO 3-in-1 EMF Meter, 5G RF/EF/MF Radiation Detector with Backlit LCD, Sound & Light Alarm, Ghost Hunting Paranormal Detector for Home and Office
4.9 out of 5 stars
Frequency Meter,10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter 0.000 001Hz Resolution $16.61
$1661
current price $16.61Frequency Meter,10MHz Frequency Meter DIY Kit Frequency Counter AVR Frequency with Shell Counter 0.000 001Hz Resolution
NFTIGB DIY Frequency Tester Crystal Counter Meter Oscillator Tester with Transparent Case 1Hz~50MHz $15.25
$1525
current price $15.25NFTIGB DIY Frequency Tester Crystal Counter Meter Oscillator Tester with Transparent Case 1Hz~50MHz
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Unique Bargains DC 0-20V Round Analogue Panel Meter Volt Voltage Gauge Analog Voltmeter$16.09current price $16.09HABOTEST HT116 Smart Digital Multimeter Battery Voltage Tester, 10000 Counts Smart Measurement, Auto-Ranging Voltmeter Non-Contact DMM/Ohmmeter/Voltmeter with Non-Contact Voltage Function
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Neoteck Voltage Tester/Non Contact Voltage Tester 12-1000V/48-1000V Adjustable Sensitivity AC Voltage Detector Tester Pen Live/Null Wire Tester with LCD Display Buzzer Alarm Wire Breakpoint Finder$9.99current price $9.99Power Probe PP319CARB Power Probe 3 Carbon Fiber w/Plastic Case
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