Fyreye MKII Addressable Rate of Rise Heat Detector

Zeta Alarms

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    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 90°C.

    Key Features

    • Designed to meet EN54 requirement
    • Lockable to base to stop unauthorised removal
    • Remote LED output
    • 8 LEDs for improved, 360° visibility
    • Compatible with all Fyreye MkII bases
    • Addressed with dip switches or hand-held programmer

    Technical Specification

    • Detector Class: Rate of Rise & Fixed Heat Detector A1R
    • Design Standard: EN54 part 5
    • Approval: LPCB
    • Operating Voltage: 17 to 28V DC
    • Quiescent Current: 500μA
    • Alarm Current @ 24V DC: 5mA
    • Operating Temperature: -10°C to +50°C
    • Minimum Continuous Temperature: 0°C
    • Maximum Humidity: 95% RH non-condensing
    • Alarm Condition: Rate of rise or fixed heat trigger @ 57°C
    • Coverage: 50m²
    • IP Rating: IP43
    • Start-up Time: 10 Seconds
    • Size (with Base): 100 x 48 mm
    • Weight (with Base): 75g (133g)
    • Remote Output: 20mA at 24VDC


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