... :ppm,%VOL,%LEL,mg/m3 Acousto-optic alarm means:, vibration Working temperature: - 40 ~ 70 °C Work humidity: 0 ~ 95% RH not ... gel Working voltage: 3.6 VDC Alarm current: 120mA The working current: KuoSanShi 10mA, pump suction method ... keys. On censored role, sound and vibration motor, lights have stopped working, but Is the wording of "screen Alarm" are flashing, if ...