AHI Rate-of-Rise Heat Detector [AHI-HEAT]

The AHI-HEAT is a compact wired thermal rate-of-rise heat detector with a high-precision NTC thermistor and intelligent fault monitoring. It is intended for environments such as kitchens, garages, laundries and workshops.Key features Rapid heat detection using NTC thermistor technology. Intelligent fault monitoring. Wired interconnection with up to 24 devices. LED and audible alarm indication with Test, Hush and Find functions. Clean NO/NC alarm contacts for security system integration. Sealed rechargeable backup battery with a manufacturer-stated service life of 10+ years. External power is required. Specifications Sensor High-precision NTC thermistor Manufacturer design classification Class A2 Supply voltage 10–30 V DC Backup battery Sealed 3.7 V rechargeable lithium Standby backup Up to 400 hours (manufacturer specification) Current 20 mA maximum; alarm current <60 mA Alarm output >85 dB at 3 m Interconnection Up to 24 devices Alarm contacts Clean NO/NC contacts Hush period Approximately 7 minutes Operating temperature -10°C to +50°C Humidity ≤80% RH, non-condensing Dimensions 67 mm diameter × 53 mm high Housing White ABS Mounting Ceiling or wall; optional flush mounting ring Installation and compatibilityCompatible with optional AHI-FLUSH-RING and AHI-WALL-PLATE accessories. Select detector type and positioning to suit the installation requirements.Manufacturer standards statementDesigned to meet AS1603.3:2018 and ISO8201 alarm signalling requirements, as stated in the supplied manufacturer brochure.