Fire alarm with CE & EN14604 smoke detector, fire detector, fire alarm high quality ,long life,favorable price Fire alarm,smoke alarm, home smoke alarm, office smoke alarm, wireless smoke alarm smoke alarm systemalarm detector with ... : : Surveillant current<15?, alarm current: <30mA 3) Alarm sound: >85dB 4) Ambient temperature: -10 ~ 50 centigrade 5) Low battery alert: 7 days 6 ...