he Non-Contactable Voltage Detector is a vital safety companion for electrical workers, designed to prevent potentially fatal high-voltage shocks. Worn as a wrist device, it continuously monitors the surrounding area for dangerous voltage levels. When the wearer approaches a high-voltage source, the detector activates visual (LED) and audible alarms at a calibrated safe distance, depending on the detected voltage. This early warning system helps workers maintain a secure perimeter, enhancing workplace safety in high-risk electrical environments such as overhead lines and unshielded cables.