Apollo Series 65 A1R Heat Detector (Part No. 55000-122APO)

The Apollo Series 65 A1R Heat Detector (55000-122APO) provides reliable heat detection in environments where smoke detectors may not be suitable. Using a dual thermistor network, it monitors the surrounding air temperature and generates a voltage output proportional to temperature changes, enabling accurate and dependable fire detection.

The 55000-122APO performs effectively in environments where dust, smoke, steam, or airborne contaminants are present during normal operation. As an A1R rate-of-rise heat detector, it responds to both a fixed temperature threshold and rapid increases in temperature, helping provide early warning of developing fires while reducing unwanted alarms.

Part of the Apollo Series 65 range, which includes 12 heat detector variants designed for different operating conditions, the detector combines proven detection performance with broad application flexibility. It also benefits from a wide operating voltage range, wide operating and storage temperature range, and optional flashing LED and magnet-operated test switch functionality.

Key Features

• A1R rate-of-rise heat detector
• Dual thermistor heat sensing technology
• Responds to rapid temperature increases
• Suitable where smoke detectors are unsuitable
• Ideal for dusty or smoky environments
• Wide operating voltage range
• Wide operating and storage temperature range
• Optional flashing LED
• Optional magnet-operated test switch
• Compatible with Apollo Series 65 systems

Typical Applications

The Apollo 55000-122APO is suitable for:

• Bed & breakfasts
• Guest houses
• Cafés
• Dusty environments
• Restaurants
• Retail premises
• Small to medium-sized buildings