Features: Household pocket size test pen for non-contact detection of voltage and circuit. 200V to 1000V wide range for AC voltage measurement. Capable of detecting breakpoints in live wires or cables. Equipped with sound and light alarm when voltage is detected; audio alarm can be disabled. One-button operation with beep indication. Powered by 2 x LR3 batteries (included). Double insulated with CAT IV 1000V safety rating for safe operation. Specifications: Material: ABS Safety Grade: CAT IV 1000V Power Supply: 2 x 1.5V 1400mAh LR03 battery Working/Storage Temperature: -10C to 50C Altitude: Up to 3000m Item Size: 153 x 24 x 17mm / 6.02 x 0.94 x 0.67in Item Weight: 54g / 1.93oz Package Weight: 102g / 3.61oz Package Size: 26.5 x 7.6 x 3.6cm / 10.43 x 2.99 x 1.42in Packing List: 1 x Test Pen 1 x Manual (English)