The Ajax Systems Protect 2 detector detects carbon monoxide indoors and provides audible and visual alerts for alarms and events. It can operate as part of the Ajax security system or independently, without a Hub.

• Detector type: Wireless
• Use: Indoor
• Detection: Carbon monoxide
• Alarm type: Sound and light
• Built-in siren: 85 dB at a distance of 3 metres
• Maximum distance from the control panel: Up to 1,700 m in an open area
• Communication protocol: Jeweller (868.0–868.6 MHz)
• Transmission power: 20 mW
• Tamper alarm: Yes
• Device authentication protection: Protection against authentication spoofing
• Fire safety standard: EN 50291-1:2018
• Compatibility: Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub Hybrid (2G), Hub Hybrid (4G), ReX, ReX 2, and all Ajax peripherals
• Power supply: 2 CR123A batteries
• Replaceable batteries: Yes
• Battery life: Up to 7 years
• CO concentration alarm: Above 50 ppm (0.005%) within 90 minutes, above 100 ppm (0.01%) within 40 minutes, and above 300 ppm (0.03%) within 3 minutes
• Operating temperature: From 0 °C to +50 °C
• Operating humidity: Up to 80%
• Dimensions: 43.5 × 86 × 86 mm
• Weight: 147 g
• Colour: White