VOLTCRAFT VC-10 Notice D'emploi page 53

Acoustic continuity tester
Diode test
In no event exceed the max. permitted input values.
Do not contact circuits or parts of circuits if there
could be higher voltages pending within them than
25V ACrms or 35V DC! Mortal danger!
<150
Test voltage: 2V, test current: 1 mA
53