Profile: ADISYS Technologies Pvt. Ltd. is a supplier of CCTV cameras, CCTV accessories, power supplies, CCTV switcher, CCTV service kit, metal detector, network switches, garage door opener, sliding gate operator, swing gate operator, barriers and industrial door operator. We also offer fire alarm system. 5809 wireless fixed heat and rate-of-rise temperature sensor offers expanded fire detection and installation flexibility. It is ideal for hard to wire locations and applications that require more than smoke detection. With no wires to run, the 5809 is fast and easy to install. The 5809 combines both rate-of-rise and fixed temperature sensors. Fires typically cause a rapid rise in temperature in the surrounding area. The 5809's rate-of-rise thermostat senses the rise in temperature and signals an alarm if the increase is 15° or more per minute.