HM/FHSE or HM/FHSE-AP

The Honeywell HM/FHSE (and HM/FHSE-AP variant) from Morley-IAS is an addressable fixed-temperature heat detector compliant with EN54-5 Class A1S, sensing at a fixed 58°C threshold for early fire warning in open areas.
Designed for addressable fire panels, it uses thermistor technology with microprocessor for linear response, features dual red LEDs for 360° status indication, and requires compatible bases like MI/B501AP/IV.
Key Specifications
Feature
Details
Operation
Fixed 58°C (Class A1S), max ambient 50°C 
Voltage
15-32 VDC 
Standby Current
200 µA @24V (no comm); 300 µA (LED blink) 
Temperature Range
-30°C to +70°C (non-isolated) 
Humidity
10-93% RH non-condensing 
Weight/Dimensions
97g; Height 52mm, Diameter 102mm (with base) 
Certifications
EN54-5:2000 A1S; EN54-17:2005 (-I version)