A smoke detector is a device that senses smoke, typically as an indicator of fire. Smoke detectors are usually housed in plastic enclosures, typically shaped like a disk about 150 mm(6 in) in diameter and 25 mm (1 in) thick, but shape and size vary. Smoke can be detected either optically (photoelectric) or by physical process (ionization). Detectors may use one or both sensing methods. Sensitive alarms can be used to detect and deter smoking in banned areas. Smoke detectors in large commercial and industrial buildings are usually connected to a central fire alarm system.
The GSM/GPRS module is an easy to add plug-in module that enables the system to communicate over the GPRS/GSM networks for reporting, control and programming. It can be used as the primary communication or as a back up for the IP or PSTN communications in case of communication failure.
Reporting events to monitoring stations can be done over voice, SMS or GPRS using the RISCO IP Receiver. Events can be reported in SIA/IP, SIA and Contact ID monitoring protocols.
Using the GSM/GPRS module, end users can obtain system control using DTMF or SMS In addition, users can enjoy peace of mind by receiving real time SMS, voice messages and email alerts.The GSM/GPRS module also supports two- way voice communication which is beneficial for elderly care, allowing two way communication with users in times of emergency.