Smartswitch is please to announce the release of a new 4 zone Fire system. Each zone can have up to 18 Fire sensors. There is an Engine shut down module to shut down engines, turn off fans and activate extinguisher canisters. All divices are connected by a 2 wire cable. The master display unit controls the communication with all the attached units. The network cable can be up to 1000 meters in length. Easy to install and works with most sensors or canisters. www.smartswitch.co.nz