VA color displlayscreenThe high-definition display can see the screen valueclearly in the dark environment AC voltage measurementThe current AC voltage can be measured whiledetecting When a nearby AC voltage is detected , the -symbol / index grid flashes and an alarm beep sounds When the " leakage switch test " is pressed and there is notrip and power failure , there is no leakage protection The " RCD TEST " button must be used With permission<br><br>Battery: AAA * 2 (shipped without) RCD current: 30MA Rated voltage: 0. 1V-250V/40-1 kHz Due to different batches, there may be differences in product appearance and printed text, which not affect use Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC 220V Colour:Black Material:ABS<br><br>Package Contents: 1 x Socket tester<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.