ETCR1880C 40V1KV Safety Cap Type High Voltage Approach Electric Alarm NonContact Alarm Device Item Type: High Voltage Alarm Material: ABS Color: As shown in the picture Alarm voltage and distance Model Voltage level Alarm distance ETCR1880C 40V 5CM 110V 10CM 220V 15CM 600V 40CM 1KV 60CM Technical Parameters Power supply 2xCR1632 Button battery (not included) Meter voltage range ETCR1880C: 40V-1KV Distance error ±10cm (23℃±1℃, 80%RH under basic conditions) Working frequency 50/60HZ Electric test mode Non-contact mode Detection mode Auto trigger Battery Life Continuous work (sound and light alarm): about 24 hours Standby time: about 12 months Alarm method Indicator light: LED visibility under 8000LX visible light Buzzer: above 60dB (distance 60CM) Protection level IP54 Working environment -10℃~40℃; less than 80%RH Storage environment -10℃~60℃; less than 70%RH How e: 2: When using, please wear the alarm on your arm so that the triangular symbol on the surface of the alarm point faces the direction of your fingertips. 3: This alarm only provides safety assistance measures, please do not overestimate the safety guarantee after wearing this alarm. 4: Near grounded metal structures (such as transformer), the working distance of the alarm will not be reduced. 5: When the alarm gets wet in the rain, please take out the battery and dry it naturally in a cool place. Please do not use the alarm in a humid state, this time it will greatly shorten the working distance of the alarm, even the alarm will always sound an alarm. 6: If the alarm is hit or hit by a strong external force, check the appearance of the alarm and press the "TEST" button to test to ensure that the alarm functions normally. 7: Please read the manual carefully after purchase.