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 the line When a nearby AC voltage is detected , the lightning-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 Battery: AAA * 2 (shipped without) RCD current:Greater than 30MA Rated voltage: 0. 1V-250V/40-1 kHz Due to different batches, there may be differences in product appearance and printed text, which will not affect use Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage: AC110V Colour:Black Material:ABS Package Contents: 1 x Socket tester 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.