The Fyreye MKII Rate of Rise heat detector
(MKII-AHR) uses a thermistor arrangement to
sense a quick rise in temperature and also a
final threshold temperature of 57°C. The Fyreye
fixed heat detector (MKII-AHF) has a single
thermistor arrangement that gives an alarm at
a temperature of 57°C, where the MKII-AHF/
CS90 gives an...