Ajax FireProtect 2 SB Black Wireless Heat & CO Detector

Ajax FireProtect 2 SB (Heat/CO) Black Wireless Fire Detector

The Ajax FireProtect 2 SB (Heat/CO) is a wireless heat and carbon monoxide detector built for homes and light commercial spaces where fast, reliable hazard detection matters. Combining two external thermistors with a chemical CO sensor, this sealed-battery (SB) model is designed to run maintenance-free for up to a decade, making it ideal for kitchens, garages, boiler rooms, and living areas near fireplaces or heating appliances where smoke detectors are prone to false alarms.

Key Features

• Dual heat sensors: Two external thermistors quickly detect rapid temperature rises or sustained high heat.
• Built-in CO sensor: A chemical carbon monoxide sensor with a service life matching the unit's 10-year battery life.
• Sealed battery design: Two non-replaceable lithium batteries rated for 10 years, reducing maintenance callouts.
• Loud built-in siren: Sounds locally for immediate on-site warning of alarms and system events.
• Long-range wireless connectivity: Uses the Jeweller radio protocol with a range of up to 1,700 m in open space to a compatible Ajax hub.
• Standalone or connected operation: Works independently straight out of the box, or integrates into a full Ajax security and life-safety system.
• Interconnected alarm response: When linked to a hub, an alarm from one fire detector can trigger sirens across all connected fire devices within seconds.
• Tamper protection: Detects attempts to remove the unit from its wall mount.
• Compact, low-profile design: Sleek black housing with simple app-based setup and SmartBracket mounting.

Where to Use It

This detector suits rooms where cooking fumes, steam, or dust would trigger false alarms on a standard smoke detector, but where heat and CO risks are still present, think kitchens, garages, workshops, boiler and plant rooms, or living spaces heated by gas, wood, or fuel-burning appliances. Because it also monitors carbon monoxide, a hazard invisible to the eye and lacking any smell, it adds an important layer of protection anywhere fuel-burning equipment operates in enclosed spaces.

What's in the Box

• FireProtect 2 SB (Heat/CO) Jeweller detector
• SmartBracket mounting panel
• Installation kit (screws and mounting hardware)
• Quick start guide

Frequently Asked Questions

Can this detector work without an Ajax hub?
Yes, it can operate as a standalone heat and CO alarm, sounding its built-in siren locally, though connecting it to an Ajax hub unlocks app notifications, interconnected alarms, and remote monitoring.

How long do the batteries last?
The sealed lithium batteries and the CO sensor are both rated for approximately 10 years of use, after which the unit should be replaced rather than serviced.

Does it detect smoke as well as heat and CO?
No, this SB (Heat/CO) variant does not include a smoke sensor; customers needing smoke detection should look at the FireProtect 2 (Heat/Smoke/CO) model instead.

Additional Resources

• More info