X-Sense XH02-M Link+ Pro heat detector Class A1 54-65°C, wireless RF connectable (868MHz) to a maximum of 24 X-Sense Link+ Pro wireless detectors. Via the X-Sense SBS50 base station possibility of WiFi network connection with up to 50 X-Sense Link+ Pro wireless detectors on 1 base station. For ambient temperatures between 4,4°C and 37,8°C. Equipped with a non-replaceable lithium battery with a lifespan of approximately 7 years. Push button for siren mute function (9 minutes). Sound level 85dB at 3 meters. EN14604 certified