UL certified CAT IV 1000-Volt AC， 12-Volt to 1000-Volt AC low range， 50-Volt to 1000-Volt AC high range

Senses 2-Voltage ranges 12-Volt to 1000-Volt AC (low ) or 50-Volt to 1000-Volt AC (high) allowing detection of low voltages (doorbells， thermostats， irrigation wiring， etc.) and standard voltages

Indicates voltage in tamper-resistant outlets when the tip is located near the hot receptacle and/or hot connection point on the outlet

Dust tight and water proof (1-minutes for 30-minutes) industrial design makes this tester easy to grip and capable of sustaining a drop from 6.5 f. (2 m)

LED flashlight in the tip operates independently of the tester functions and can be used to illuminate the work area press the flashlight button to turn it on/off the tester is set to flashlight off the flashlight will auto power off after 5-minutes

Audible notification disable the tester can be operated with a visual only indication of voltage when working in noise sensitive/noise restricted area with the simple press of a speaker button

Auto power off after 10-minutes of inactivity (no button pressed and no signals detected)， the tester will emit 1 L beep (0.5s) and then shut off note: if the flashlight is on， it will be also shut off

Sensor does not work with DC circuits