Features: Household pocket size test pen for non-contact detection of voltage and circuit. 200V to 1000V wide range for AC voltage detection. 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 use. 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) Shipping Information: All items will be shipped within 3 business days after payment is received. Delivery typically takes 815 days, depending on location. Customer Support: If you have any questions, please . We respond within 24 hours. We aim to provide high-quality products designed for optimal performance and user safety. For the best experience, please review product dimensions and specifications before purchase. Thank you for choosing our product. We hope you enjoy your purchase.