Triplett ET330 Non-Contact AC Voltage Detector

The Triplett ET330 is able to check for the presence of AC Voltage before working on a circuit. The ET330 has dual AC voltage ranges (24 to 1000V and 90 to 1000V) with high sensitivity that allows it to detect low voltage AC wiring commonly found in doorbell circuits, thermostats, control circuits, and video surveillance camera power.