Saves time: Fast voltage testing through non-contact measurement. Increases your efficiency: Can be used for all sockets worldwide thanks to internationally adapted measuring tip. Increases your efficiency: Integrated, bright LED flashlight. Increases your flexibility: Voltage tester covers a large voltage range from 12 - 1,000 V AC. Application: For detecting and locating live conductors, cable breaks and breaks, blown fuses, defective lamps on fairy lights and individual wire detection. Standards: CAT IV 1,000 VAC Before starting an electrical installation, electricians must ensure that the work environment is free of voltage. A voltage tester is required to test alternating electrical fields or to locate suspected sources of error. An initial indication of whether there is no voltage is possible with the non-contact Wiha voltage tester thanks to the optical and acoustic signal. After switching on, the permanently green LED indicates that the device is ready for use. During the voltage test, the LEDs light up from blue (weak) to orange to red (strong) depending on the strength of the alternating electrical field. Two AAA batteries are required for use, which are included in the delivery. If the device is not used for 4 minutes, it switches off automatically to save energy. An integrated LED flashlight enables the measuring point to be illuminated in dark environments and can be used as a flashlight by manually switching it on and off. Thanks to its handy size, the voltage tester with clip fits comfortably in any shirt or trouser pocket. Thanks to the internationally adapted measuring tip, the voltage tester is suitable for all socket variants worldwide. The single-pole voltage tester is subject to the EN 61010-1 / IEC 61326 standard and is designed for CAT IV 1,000 VAC. For electrical applications Before and after each use, the voltage tester must be tested on a known voltage source to ensure that it is functioning properly. EN 61010-1, IEC 61326, IP67.