HIOKI 3480-21验电笔 Voltage Detector 3480-21Tough and Durable CAT IV 600V Safety - Quality in Every Direction Green Light Means the Batteries are Good to Go Bright Red LED and Crystal Clear Buzzer Means Voltage is Present Especially catering to 200V to 240V installations Basic specifications Function Voltage Detection (for 200V Installations) Operating Voltage 90 to 600V AC Operating Frequency 50/60Hz Voltage Indication Red Flashing LED and Beeping Buzzer Battery State Indication Green LED at Power ON Auto Power Off 3 minutes after last power ON Power Supply LR44 Button Alkaline Batteries × 2 Continuous Use Maximum 15 hours (when voltage detector is turned ON to standby) Dimensions Approx. 20W × 126H × 15Dmm (excluding protrusions) Mass Approx. 25 g (including batteries) Accessories LR44 Alkaline Button Batteries × 2 (for test use only - must be replaced) and user manual