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 MO280 PINLESS MOISTURE METER

• Non-invasive measurement to monitor moisture in wood and other building materials
• Select from 10 wood types and measurement ranges
• Measurement depth to 0.75" (20mm) below the surface
• LCD displays % moisture of wood or material being tested

EXTECH ET40 HEAVY DUTY CONTINUITY TESTER

• Ideal for checking continuity of non-energized components, fuses, switches, relays, wiring and circuit boards
• 30" (76cm) test lead with alligator clip

EXTECH EX355 12 FUNCTION TRUE RMS MULTIMETER + NCV

• True RMS for accurate AC measurements
• 6000 count backlit LCD display
• Low Impedance (LoZ) prevents false reading caused by ghost voltages
• Low Pass Filter (LPF) for accurate measurements of variable frequency drive signals

EXTECH CO50: DESKTOP CO (CARBON MONOXIDE) MONITOR

• Simultaneously displays Carbon Monoxide (CO) concentration, Air Temperature, and Relative Humidity readings with date (Year, Month, Day) and time
• Visibly bright LED indicates active monitoring (green) or surpassed CO alarm threshold (red)
• Extra loud audible beeper alarm level meets UL 2013 Standard (>85dB @ 3 meters); default alarm threshold at 30ppm (user adjustable)
• Designed with Electrochemical CO sensor
• Record/Recall Max reading for CO concentration
• CO calibration function in fresh air

EXTECH BT100: BATTERY CAPACITY TESTER

• On-line testing without shutting down battery
• Built-in datalogger stores up to 999 tests
• Simultaneously measures battery resistance and voltage
• PC software for downloading readings to a PC

EXTECH 380320 ANALOG INSULATION TESTER

• Large easy to read analog display
• Three test voltages 250V, 500V, and 1000V
• Insulation Resistance to 400MOhm
• Lock Power On feature for extended test times

EXTECH CO10: CARBON MONOXIDE (CO) METER

• Easy to read 1999 count backlit displays CO levels from 0 to 1000ppm
• 1ppm resolution with ±5% or ±10ppm basic accuracy (whichever is greater)
• Utilizes a stabilized electrochemical gas specific (CO) fast response sensor
• Audible alarm starts at 35ppm
• Backlight for low light conditions

EXTECH HD450 DATALOGGING HEAVY DUTY LIGHT METER

• Automatically stores up to 16,000 readings or manually store/recall up to 99 readings
• Large backlit LCD display with 40-segment bar graph
• Wide range to 40,000Fc or 400,000 Lux
• Cosine and color corrected measurements
• Utilizes precision silicon photo diode and spectral response filter
• Peak mode (10mS) captures highest reading

EXTECH UM200 HIGH RESOLUTION MICRO-OHM METER

• 6 ranges with 3 sub-ranges in each current range
• Measurement of resistive and inductive materials
• 5-Digit backlit LCD, PC interface
• Auto or Manual ranging, 10A maximum test current
• Store/Recall up to 3000 measurements

EXTECH 380562 HIGH RESOLUTION PRECISION MILLIOHM METER (220VAC)

• 7 ranges for wide low resistance measurements
• High resolution to 0.01mOhm
• 1999 count display with 0.8" digits
• 4-wire test cable with Kelvin clip connectors
• Automatic zero
• Built-in comparator for Hi/Lo/Go resistance testing or selection