Newest Socket Tester Ground Zero AC Voltage Tester 30V-250V RCD Test Plug Polarity Phase Voltage indicator Check EU/US/UK Electric Tools Features 1.Advanced and easy-to-use socket tester. Quickly and intelligently measure whether the socket connection line is correct. And through the fully backlit screen, various wiring status can be clearly displayed, even in a dark environment. Moreover, it is small in size and light in weight, and the use process is very easy and pleasant. 2.AC voltage measurement. AC voltage can be accurately measured and displayed on the screen in real time. The measuring range is 30V-250V. 3.Designed with RCD/GFCI Test Button, One Click to know the working state of the leakage protector. Perfect for protect your security against the risk of electric shock. 4.Data storage function. It is convenient to record the voltage at different times or in different environments, and it can store up to 20 groups. 5.Wide application. Widely used for electric maintenance testing, office sockets testing, power strips testing and wall sockets testing in school, laboratory, factory and other social field. Home improvement acceptance and safety inspection,It saves you lots of time in testing problems with sockets. Specification BatteryCR2032 3V*2 (not included) Color: Black Material: Flame Retardant ABS Plug Type: EU / US / UK (Optional) Data storage :20 groups Voltage: 30V-250V 50-60Hz RCD Test: >30mA (EU/UK Plug) RCD Working Voltage: 220V20V RCD(GFCI Test: >5mA (US Plug) RCD(GFCI Working Voltage: 110V22V Voltage Measurement(EU/UK Plug): 30V~250V / 50~60Hz Voltage Measurement(US Plug): 30V~120V / 50~60Hz Working Environment: 0 ~ 40, 20% ~75%RH Storage Environment: -10 ~ 50, 20% ~80%RH EU Product size & weight :About 82*65*80mm,94g UK Product size & weight :About 82*65*72mm,94g US Product size & weight :About 82*65*67mm,86g Package List: 1 * Socket Tester 1 * User Manual (English) 1 * Kraft box