Martindale TEK101 is a simple-to-use non-contact voltage indicator with audible and visual warnings and an extended probe tip for access to confined spaces. It is optimised for identifying energised conductors at voltages within the range 180 V to 600 V AC. Features include a unique built-in 50 Hz proving unit which tests the sensor operation, battery and LED. This unit proves the entire circuit is fully functional, avoiding the need for a separate proving unit. The tip design and optimised sensitivity make it possible to discriminate between adjacent live conductors. The high resolution capability of the TEK101 improves safety and saves time on-site. The pocket sized design conforms to CAT IV 1000 V safety regulations.