Wiha voltage and continuity tester for standardized voltage testing, continuity testing, and rotational field testing including FI protective switch measurement. Features an integrated flashlight function for optimal illumination and FI load buttons. LED display ensures easy to read measurement results, while an additional signal sound indicates the current flow during the continuity check. Enables quick one-handed operation on testing of sockets due to integrated spacer. Offers maximum safety while working on building installations or directly on the sources of low-voltage installations. CAT IV 1000V 12-1000V Test Voltage 0400Continuity Single-Pole Phase Indicator Real-Time Read-Out LED Display 12 - 1,000 V AC / 1,500 V DC CAT III 1,000 V / CAT IV 600 V One-handed test CAT IV 1000V 12-1000V Test Voltage 0400Continuity Single-Pole Phase Indicator Real-Time Read-Out LED Display 12 - 1,000 V AC / 1,500 V DC CAT III 1,000 V / CAT IV 600 V One-handed test