• Non-Contact Lighted Cable with Detector Voltage Test Electrical Leakage Digital Control Pen Device Ac Voltage Detector Non-Contact Ac Voltage Detector Features Functions Voltage Sensitivity 90 ~ 1000Vac Bandwidth 50/60Hz Normal Indicators Beep And Flashing Led Indicates the Presence of Voltage Automatic Shutdown Approximately 30 Minutes Power 1.5V Battery (AAA) X 2 (Thin pen battery) Product Net Weight 49g Product Size 150 X 109Mm Batteries are included in the package.