... wires and cables 3)Safety on detection FEATURESUse to detect voltage in outlets,lingting fixtures,circuit breakers,wires,and cables or ... in a wire.Safe,non-contact voltage detection.Bright LED and audible alarm sound if voltage is present.On/off switch ... AAA batteries SPECIFICATIONSVoltage Detection : 500V-1000VACFrequency :50-500HzMeasurement category : CAT III,1000V per UL 3111-1 CAT IV,600V per IEC ...