ZP3-Lite is a one-loop fire detection and alarm system, specifically developed for small to medium sized premises. It offers all the advantages of ZP3 analogue addressable technology configured into a single standalone unit. The system offers tailor made engineered solutions for a wide range of small to medium sized applications. Modular design backed by powerful software enables the system be configured exactly to the needs of any commercial or industrial site, where a single panel solution is required. Advanced design, combined with high sensitivity smoke and fire sensing, enables ZP3 - Lite not only to identify and disregard conditions, which would result in false or unwanted alarms - but to recognise real fires sooner. Up to 127 line devices (sensors, callpoints, sounders or interface units) can be connected to the control panel. All loop devices incorporate switch settings enabling them to be assigned a unique address, the location of which is pinpointed and polled by the panel every two seconds. Variations in the sensors environment caused by increases of temperature or products of combustion are reported to the panel, where they are processed and compared to known fire data, prior to any alarm output being activated. Constant communication between control panel and sensor enables ZP3 - Lite to provide a wide range of user facilities including pre alarm, constant sensitivity adjustment and service and near service listings for all sensor types. Software flexibility enables facilities such as alarm organisation, evacuation procedures and complex cause and effect requirements to be easily programmed into even the smallest system. All customer and site data is held in non-volatile flash memory, ensuring both ease of initial system data input and subsequent on site amendments and modifications should they occur.