Professional AC Voltage Detector with Non-contact test,Never Test The Voltage Which Over 1000V AC. Non-contact pen, the whole insulation plastic seal, you are in the electricity, the security protection, there is no danger of any electric shock. When the sensor is sensed or the voltage is detected, the white part of the pen will light and beep, it is easy to detect. Pocket-sized Non-contact detector senses the steady state electrostatic field produced by AC voltage. Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc. Specification: Material: ABS Plastic Color: As picture show Test Voltage Range: 90-1000V AC Safety Rating: CAT II 1000v Operating temperature: -10 to 50 C Storage temperature: -10 to 50 C Operating Humidity: 80% Size: Approx. 150 x 23 x 15 mm / 5.91 x 0.91 x 0.59 inch Powered By: 2*AAA Batteries(Not include) Package Includes: 1 Piece Voltage Detector Pen Note: