How to Use
1. Switch It On
Turn the tester on and confirm it responds on a known live source, like a working power socket.
2. Hold Near the Wire
Bring the tip close to the socket, cable or switch you want to check. No contact with bare conductors is needed.
3. Read the Signal
The tester signals when voltage is present. If it stays silent, double check on a live source before treating the circuit as dead.
Common Questions Before You Buy
How does non-contact testing work?
The tester senses voltage through the insulation, so you hold the tip near the cable or socket and it signals when voltage is present. You never touch a bare wire.
Is it waterproof?
It carries an IP67 rating, meaning it is dust tight and protected against temporary water immersion, suited to worksite conditions.
What can I check with it?
Power sockets, cables, switches, light fittings and other electrical points around the home, garage or jobsite.
Is it safe for beginners?
Yes. Because there is no contact with live conductors, it is one of the safest ways to check for voltage. Always confirm the tester works on a known live source first.
Which model is this?
This is the Bosch GVD 1000-17 non-contact voltage tester with IP67 protection.



Detects voltage without touching live wires
