They’re also notoriously unreliable. Fine for casually looking for powered circuits, but if you’re going to touch the conductors at all, use a meter.
As an electrician; it’s drilled into your head to use an actual physical-contact meter that you’ve just tested for function on a known good power supply.
Some courses even demand you re-test the meter after you’ve checked the circuit you’re testing.
They are called death sticks for a reason. Always use a known working 2 point meter, and know how to use it correctly. That is the live saving tip here.
Non-contact voltage tester pens are cheap and made for this purpose. Don’t need a meter to measure. Just need to know live or not.
They’re also notoriously unreliable. Fine for casually looking for powered circuits, but if you’re going to touch the conductors at all, use a meter.
As an electrician; it’s drilled into your head to use an actual physical-contact meter that you’ve just tested for function on a known good power supply.
Some courses even demand you re-test the meter after you’ve checked the circuit you’re testing.
Dead live dead test. Always
They are called death sticks for a reason. Always use a known working 2 point meter, and know how to use it correctly. That is the live saving tip here.