Wireless fire detector Ajax WRL FIREPROTECT 2 SB/HS Black — smoke and heat detection, battery-powered

Ajax WRL FIREPROTECT 2 SB/HS Black is a wireless fire detector that combines optical smoke sensing with heat detection to provide early warning of combustion and rapid temperature rise. The detector is battery-powered with two non-replaceable lithium batteries and is designed for integration with Ajax security systems. Its compact black housing and dimensions of 123.7 × 123.7 × 44.7 mm make it suitable for domestic, office and light commercial environments where wireless connection and straightforward installation are required.

Advantages

The device uses both smoke and heat sensors to reduce false alarms from steam or cooking while ensuring fast response to real fires. Wireless connectivity enables placement without hardwiring and simplifies expansion of existing Ajax systems. Long-life non-replaceable batteries remove the need for frequent maintenance and the detector’s operating temperature range from 0°C to +50°C allows reliable operation in typical indoor environments. The black finish offers a discreet aesthetic that blends with modern interiors.

Suitable for

• Homes and apartments where early fire detection and minimal wiring are required
• Offices and small commercial premises connected to Ajax security systems
• Kitchens and utility rooms where combined smoke and heat detection reduces false alerts

Key specifications

• Detector type: combined optical smoke and heat detector
• Connectivity: wireless, compatible with Ajax security systems
• Power supply: two non-replaceable lithium batteries
• Operating temperature range: 0°C to +50°C
• Colour: black
• Dimensions: 123.7 × 123.7 × 44.7 mm

How to use

Install the detector on a ceiling or high on a wall following the mounting instructions supplied with Ajax devices and register it in the Ajax app or control panel to enable monitoring and alarm notifications. Position the detector away from drafts, air vents and direct sources of water or steam to maintain detection accuracy. Regularly check device status through the system app to confirm battery level and connectivity; the detector’s integrated sensors operate automatically and will signal the alarm panel if smoke particles or rapid temperature rise are detected.

Recommendations

For reliable performance, mount the detector at least 30–50 cm from room corners and follow local fire safety regulations for placement. Avoid installing directly above stoves or showers where steam or grease may cause nuisance alarms; where such environments are unavoidable, consider complementary placement strategies or additional detection points. Maintain communication by ensuring the Ajax hub or control unit is within wireless range and monitor the device status periodically via the Ajax app.