AC11 Socket Tester Pro Voltage Test Socket Detector UK EU Plug Ground Zero Line Plug Polarity Phase Check Features: 1.Smart socket tester are mainly used to detect polarit of power socker and safety of leakage switch. 2.It can quickly and accurately detect the wiring of the socket. 3.It can test socket voltage and show on the LCD display LED screen. 4. LCD backlight display, auto power off, low battery indication, thickened protection cover. 5.Multifunctional,can measure trip-out current,trip-out time,contact voltage,loop resistance,AC voltage,frequency,RL Current,multiplying power of test current. Description: 1.Portable design,easy to carry. 2.Can measure trip-out current, trip-out time, contact voltage, loop resistance, AC voltage, frequency, RL Current, multiplying power of test current. 3.Leakage switch detector can be widely used in the power supply department, agricultural and electrical departments, leakage protection equipment,manufacturers, buildings, mining, machine tool and other industries. Specifications: Work voltage: 2.6~3.3V Test voltage range: 0.1V~250V/40~1kHz Work temperature: 0 °C~40 °C work humidity: 20%~75%RH Stock temperature: -10°C~50 °C Stock humidity: 20%~80%RH RCD current: >30mA RCD work voltage: 220V±20V Power by: 2* AAA batteries(not included) Color:black Type :US,EU,UK,South America-India(optional) Package Included: 1 * AC11 Socket Tester Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.