Features: This is a non-contact voltage pen tester with a wide testing range from 90V to 1000V. No need to contact wire, it can detect if wire is electrified, safe and reliable. Put tip of detector close to the objects being tested with AC-voltage, the tip will light on and buzzs. Integrals insulated plastic-seal ensures your safety when testing electricity, without any danger of electric shocks. There is a bright LED at the tip of the pen, which can be used as a flashlight in a dim working place. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Voltage Detecting Range: 90V-1000VAC Battery Type: 1.5V AAA battery x2 NOT included Length: 15cm/5.9in Weight: 43gapprox. Package List: 1x Non-Contact Voltage Tester