Features: 1. Measuring Range: 70V-250V, overall length is 14.5cm, single light without the main board, double light with the main board optional. 2. It can work as a circuit tester or a screwdriver, which makes work more convenient. 3. The voltage tester pen is used for testing the circuit and distinguishing whether the object is electrified. 4. When using the voltage tester, please insert the screwdriver to the bottom, hold the insulated handle with the thumb and middle fingers, and hold the cap at the end of the voltage tester with your forefinger 5. Note: Do not touch the voltage tester probe. Specification: Material: PC + HRA Titanium Alloy + Electronic Components Color: Multicolor Measuring Range: 70V-250V Product Size: 14.5cm Product Weight: 30g Package Included: 1 x Intelligent Induction Power Voltage Detector Pen