Detector, Fire, Heat : A form of fire detector which responds to an increase in temperature. (BS 4422(4)). The sensitive element may be fusible links, bimetallic strips, thermocouples or electrical conductors
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}