Works with GFCI circuits
Tests for faulty wiring in 3-wire receptacles: Correct, Open Ground, Open Neutral, Open Hot, Hot/Ground Reverse, Hot/Neutral Reverse
Lights indicate circuit condition
Standard North American 3-prong plug

More products EXTECH

EXTECH MG300 13 FUNCTION WIRELESS TRUE RMS MULTIMETER/INSULATION TESTER

• Wireless USB interface transmits measurement data to a PC
• Backlit super large triple display
• 125V, 250V, 500V, and 1000V test voltages
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• Auto discharge of capacitive voltage

EXTECH MA410 400A AC CLAMP METER + NCV

• AC Current, AC/DC Voltage, Resistance, Frequency, Capacitance, Temperature, Duty Cycle, Diode and Continuity
• Integrated Non-Contact Voltage Detector with LED alert
• Compact size allows measurments in tight locations
• 1.2" (30mm) jaw size for conductors up to 350MCM
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EXTECH CO100 DESKTOP INDOOR AIR QUALITY CO2

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• Maintenance free NDIR (non-dispersive infrared) CO2 sensor
• Indoor Air Quality displayed in ppm with Good (0 to 800ppm), Normal (800 to 1200ppm), Poor (>1200ppm) indication
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EXTECH SD700 BAROMETRIC PRESSURE/HUMIDITY/TEMPERATURE DATALOGGER

• Displays Barometric Pressure in 3 units of measure: hPa, mmHg, and inHg
• Triple LCD simultaneously displays Barometric Pressure, Temperature, and Relative Humidity
• Datalogger date/time stamps and stores readings on an SD card in Excel® format for easy transfer to a PC
• Selectable data sampling rate: 5, 10, 30, 60, 120, 300, 600 seconds
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EXTECH MG320 CAT IV INSULATION TESTER/TRUE RMS MULTIMETER

• Measure Insulation Resistance to 20GO
• 5 Test Voltage ranges
• Polarization Index (PI) and Dielectric Absorption Ratio measurements (DAR)
• Low Resistance measurement with Zero function
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EXTECH EMF300 MICROWAVE LEAKAGE DETECTOR

• Ideal for measuring high frequency radiation levels emitted from household and commercial microwave ovens
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• Audible alarm and overrange indicator
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• Complete with 9V battery

EXTECH MN47 12 FUNCTION COMPACT MULTIMETER + NCV

• Built-in Non-contact Voltage Detector (from 100 to 600VAC)
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• Autoranging with manual override
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EXTECH 380462 PRECISION MILLIOHM METER (220V)

• High accuracy and performance for low resistance measurements
• Large 0.7" (18mm) LCD 1999 count
• 4-wire cables with Kelvin clip connectors
• Manual zero display adjust
• Overrange indication
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EXTECH CB20: CIRCUIT BREAKER FINDER/RECEPTACLE TESTER

• Quickly locate Circuit Breakers and Fuses
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• Complete with Receiver, Transmitter and 9V battery
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EXTECH UV510 UVA LIGHT METER

• Sensor wavelength range 320 to 390nm
• UV sensor with cosine correction measures irradiance from UVA light sources up to 20.00mW/cm²
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• Zero function
• Data Hold and Min/Max functions