Thermic-thermovelocimetric conventional smoke detector. Recommended for fire detection in environments where the temperature is low and stable. Includes fix temperate function at 58ºC. Through S300RPTU wireless programmer it can be realize a test equipment, measurement of dirt levels, production date and last maintenance display , adjust the sensitivity, cancel the LED blinking and assign a directioning from 1 to 255. Includes a bicolor LED to indicate the sensor status and a remote indicator output. Requiers B401 or B401R base.