The Laserliner ActiveMaster is a practical and reliable device for testing voltage and continuity. It provides automatic AC and DC voltage testing and automatic range and function changeover for direct testing and measurement. In addition, it can be used for single-phase and rotary field testing with phase sequence display and also single-pole phase testing. The automatic continuity tester has an acoustic signal.

The ActiveMaster has a rugged case with lockable test prod spacing. It is supplied with 2 x AAA batteries and protective covers.

Voltage range (LED indicator): 12, 24, 36, 50, 120, 230, 400, 690 V AC/DC.
Overvoltage category: CATII/1,000V, CAT III/1,000V and CAT IV/600V.