Martindale Electric VT7 Single Pole Voltage Indicator is a reliable tool for detecting high and low voltages, with a maximum voltage of 600V. Utilising LED/audio technology, this contact voltage detector offers accurate readings in a variety of professional settings. Designed by the trusted brand Martindale, this product ensures safety and precision in electrical testing and inspection tasks. Perfect for businesses, offices, and industrial applications, this voltage indicator is a must-have for any electrician or technician.