Switching On and Off

  1. Briefly press the  button to switch on the voltage tester. The voltage tester will perform a self-check. An audio signal will sound, the voltage tester will vibrate and the probe tip (1) will flash red / green / orange and both LEDs ((7)/(8)) will flash.
    After a successful self-check, the high-voltage mode LED  will light up white and the probe tip (1) will light up green. The voltage tester is ready to use for detecting AC voltages between 90 and 1000 V AC. The self-test will be continuously repeated in the background every 5 seconds until the voltage tester is switched off.
    If the self-check was not successful, the voltage tester will switch off.
  2. Press and hold the  button to switch off the voltage tester. An audio signal will sound.
Do not use the voltage tester if, upon switching it on, there is no audio signal and/or the voltage tester does not vibrate.

If no button on the voltage tester is pressed or no voltage is detected for approx. 5 min, the voltage tester will switch off automatically to preserve the non-rechargeable batteries.