The Apollo XP95 Heat Detector (55000-420APO) is an addressable fixed-temperature heat detector (A2S class) designed for use on XP95 analogue addressable loops. It uses a single NTC thermistor to provide an analogue temperature count and generates an alarm at 55 °C. The detector is intended where smoke detection is unsuitable (car parks, loading bays, dusty or normally smoky environments) and is designed to resist effects of wind and varying atmospheric pressure.

• Fixed-temperature alarm: A2S class, alarm at 55 °C.
• Addressable XP95 protocol: Compatible with XP95 and related addressable control equipment.
• Single thermistor: NTC thermistor produces analogue count proportional to air temperature.
• Low airflow resistance housing: Reliable operation in windy or variable-pressure locations.
• Remote LED output: Red alarm LED fitted; remote indicator terminals (+R/−R) available.
• Rugged environmental performance: Wide operating temperature and high humidity tolerance; suitable for car parks, warehouses and other harsh areas.
• Long warranty: Manufacturer warranty listed as 10 years.

Applications: Ideal for car parks, loading bays, warehouses, plant rooms and other locations where smoke detectors may give nuisance alarms or where smoke detection is impractical.

Compliance & safety: Manufactured to recognised standards (see specifications). Installation, commissioning and maintenance should be carried out by a competent person in accordance with local regulations and the manufacturer datasheet and installation guide. For certified system compliance (EN54) confirm the required variant and approvals with the manufacturer/distributor.

Note: For full technical details, wiring diagrams and approved variants consult the official Apollo datasheet and installation manual.