... Alarm 4, low battery consumption --- Standby currents are zero, when the job is less than 1mA. 5, very high accuracy and sensitivity --- ... battery failure, insufficient voltage, when the voltage is not less than when the red metal detection Alert lit, indicating the replacement ... battery (6F22ND) 3, Power consumption: 220mW 4, operating current: less than 50mA 5, the working temperature: -10 -50 6, net ...