Feature: 100% brand new and high quality . Quantity: 1 Frequency Range: 50 to 500 Hz Test Voltage Range: 90-1000V AC Safety Rating : CAT II 1000v Powered By: 2 x AAA Batteries (Not included) A perfect tool kit for home and electric industry uses Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc Just press the button, white LED light can be always on when there is absence of voltage "Beep" sound and red flashing LED would indicate the presence of voltage Totally insulated, no exposed metal or conductive parts Long life and low power consumption Compact, safety, & easy to carry Specifications: Material: ABS Plastic Item size: 152*23*15mm Net weight: 45g Package weight: 60g Package Content: 1 x LED Light Voltage Alert Pen