Features: Zero & Live Wire Test: according to the signal strength, strong signal is live wire, weak or no inductive signal is zero wire. AC Voltage Detection Range: 12V~1000V sensitivity range, the range indicator light will lit or light off to indicate. Safe Operation: CE CAT II 1000V / CAT IV 600V security level, NCV smart test, both buzzer sound and LED light alarm. Torch Function: with white LED illumination lamp for lighting up the working area in the darkness. Auto Power-off: when there is no operation for about 5 minutes and the voltage signal is not detected, the tester will turn off automatically. Low Battery Indication: the symbol will appear on the display screen when the battery voltage is low. Specifications: Color: Blue / Red / Yellow (Optional) Material: ABS AC Voltage Detection Range: 12~1000V Detected Frequency: 50/60Hz Alarm Mode: Led and buzzer sound Torch: White Color LED Operation Temperature: 0~40℃ Safety Grade: CE CAT.II 1000V, CAT IV 600V Power Supply: 2 * 1.5V AAA battery (NOT included) Item Size: 173 * 38 * 27mm / 6.81 * 1.50 * 1.06in Item Weight: 42g / 1.48oz Package Weight: 65g / 2.29oz Package Size: 19.5 * 4 * 3cm / 7.68 * 1.57 * 1.18in Packing List: 1 * Test Pen