We offer discount for large quantity. We invite you to ! AC 100-500V Sensor Pocket Voltage Sensor Screwdriver TesterProduct Name: Voltage Sensor Tester; Material: Plastic, MetalVoltage: AC 100-500V; Tip Size (Approx.) : 3mm / 0.12" Shaft Length : 55mm / 2.1"; Overall Size(Approx.) : 140 x 15mm / 5.51" x 0.59" (L * D) Handle Color: Clear, Red, Silver Tone; Net weight: 17g 3mm flat screwdriver, plastic handle. This Voltage Tester can check all the electricity without u with wires that show hot (fire) with electricity and cold (ground). It has the ability to check the voltage from 100V to 500V AC. Package Contents: 1 x Voltage Sensor TesterNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/