Measureman Socket Tester with Voltage Display, GFCI Outlet Tester 48-250V, Includes 7 Visual Indications and Wiring Legend for Home and Professional Use

Description Specifications: Operating voltage: 48-250V/45-64Hz Measure voltage(with LCD): 48-250V/45-65Hz Accuracy: (2.0%+2) Operating temperature: 32-140°F/0-40? Operating Humidity: 20%-75% RH Storage temperature: 14-122°F/-10-50? Storage Humidity?20%-80% RH Altitude: 2000m RCD test: 30mA RCD working voltage: 220V/20V GFCI test: 5mA GFCI working voltage: 110V/20V Voltage test(with LCD): Insert the tester into a standard three hole power outlet. Read the socket voltage from the tester screen, the unit is V. RCD(or GFCI) test: Insert the tester into the three hole power socket. Press the button(less than 3 seconds), and the normal RCD will trip off. If not, it indicates that the RCD test is failede. Please find professionan electrician in time. Note? ? The text time is not more than 5 minutes. ? When using, please be careful not to touch the RCD button, so as not to trigger the leakage protection switch, causing unnecessary losses. ? LIVE/GRD REVERSE, missing GRD: It is the reverse connection between the live line line and ground line, and the ground line is unconnected. ? This tester cannot distinguish between neutral line and ground line reverse. Measureman has 20 years rich experience in the measuring of pressure, temperature, flow, level industries, The "Measureman" branded products are the combination of continuous good quality and affordable price. "Measureman" products are selected and designed by professional engineers.