Feature:1. Multifunctional: This GFCI outlet tester is multifunctional and can detect the most common wiring faults, open ground, open neutral, thermal ground reversal, thermal neutral reversal and open ground in GFCI power outlets.2. Super HD LCD Large Screen: This electrical GFCI trip tester uses a large super HD LCD screen to display the test results, which clearly shows the value even in dark environments.3. Easy To Use: This voltage socket checker is easy to use, with plug and play, 1 touch testing. It uses 2 x AAA batteries (not included), which are easy to replace and the battery life is super long and endurable.4. Ergonomic Body: This electric outlet voltage tester has an ergonomic slim body that is small in size, light in weight and is comfortable to hold in 1 hand for easy measurements.5. GFCI Trip Test: This socket checker detector has a GFCI trip test function, which allows you to press the leak test button GFCI to trip (test) the circuit if it has a ground fault detector.Specification:Item Type: Outlet TesterMaterial: Flame Retardant ABSPlug: US AC30-260V 45-65HzBattery: 2 x AAA Batteries (Not Included)Voltage Range: 30-260V 45-65Hz, Accuracy: (3.0%+2)Leakage Voltage: 0-99V 45-65Hz, Accuracy: (2.0%+2)LCD Display: YesGFCI Test: >5mA (HT97B US Plug)GFCI Operation Voltage: 110V 20VTrip Time Test: 10-1000ms (2.0%+4)Data Hold: YesAuto Power Off: YesSafety Rating: EN61010-1-2-030, EN61326-1, CAT II 300V.Package List:1 x Outlet Tester1 x Manual