The testo 745 Non-Contact Voltage (NCV) tester quickly checks for the presence of voltage in AC powered systems. It can be safely used up to 1000 V AC. When AC voltage is detected, the testo 745 gives indication by flashing of its RED LED tip and buzzing of its internal audible buzzer. You can easily determine the hot and neutral legs of an outlet without time consuming and risky removal of the outlet from the outlet box.
- Two sensitivity levels with audible and visual indication
- Flashing LED indicates sensitivity range down to 12 V AC or standard range above 50 V AC
- Differentiates hot from neutral in AC outlets
- Low Pass Filter reduces false indications