How to Turn Universal Leak Tester on?

1. Connect the power adapter to Universal Leak Tester body.

2. Press the POWER button once on the main unit until you hear a single click.

3. Ensure the red LED indicator on the POWER button is lit, and the LCD screen is powered on.

4. It shows serial number(2nd row) of the tester and MAC address(3rd row) if it's operational.