Dual tamper protection from upper cover removal or removal of the bell box. SAB mode is available, Equipped with internal 7.2V rechargeable battery LED indications for easy status confirmation Piercing siren sound with high-visibility xenon strobe flashes 4 kinds of sounder timer selections External or internal tamper trigger is selectable Operating Voltage 10-15V DC
Dual tamper protection from upper cover removal or removal of the bell box. SAB mode is available, Equipped with internal 7.2V rechargeable battery LED indications for easy status confirmation Piercing siren sound with high-visibility xenon strobe flashes 4 kinds of sounder timer selections External or internal tamper trigger is selectable Operating Voltage 10-15V DC