Suitable for non-contact AC voltage tests, earthing / ground connection checks, proper connection checks and broken wire detection. High sensitivity tester offering an extensive non-contact voltage detection range of 70-1000V AC. Bright red LED illumination on detection of AC voltage. CAT IV 1000V LED Indicator Double-Insulated Ergonomic Dual-Component Body High Sensitivity Tester On/Off Button for Longer Battery Life Handy Pocket Clip 50-500Hz CAT IV 1000V LED Indicator Double-Insulated Ergonomic Dual-Component Body High Sensitivity Tester On/Off Button for Longer Battery Life Handy Pocket Clip 50-500Hz