HABOTEST HT100P Non Contact 3 Phase Rotation Indicator AC LCD Display Detector Pen Tester Feature 1. NCV HighLow Sensitivity Adjustable: dual sensitivity AC voltage range of 12V~1000V & 48V~1000V with switching S button. 2. AC Voltage Detection: detect AC voltage by contacting the power socket or getting near the live wire with non-contact tip. 3. NCV Phase Sequence Detection: designed with the function of phase sequence measurement. 4. LED Illumination: with flashlight for auxiliary lighting up the working area, convenient to use at night or dark corner. 5. Other Functions: breakpoint checking, high voltage circuit alarm function, live wire measurement and full wire measurement. 6. Auto Power-off: automatically turn off when no operation and no detection of AC voltage after 3 minutes. Specifications 1. Voltage detection range: - High sensitivity: AC12-1000V - Low sensitivity: AC48-1000V 2. Frequency: 5060Hz 3. Alarm mode: sound and light alarm 4. Probe shape: flat and long 5. Backlight: red and green two colors 6. Zero live line judgment: - Green: Neutral line - Red: Live line 7. Signal strength display: analog bar four-level sensitivity 8. Signal strength indication method: the beep changes from slow to fast, the backlight color changes from green to red, and the analog bar changes from low to high 9. Power supply method: AAA battery x2 (not included) 10. Size: 157x27x23mm 11. Weight: about 32g