Based on this product's specifications, here are some alternatives and similar models
Smoke and Carbon Monoxide Alarm Eura CSD-39A2 — combined smoke and CO detector, mains/ battery-powered (model CSD-39A2)
Summary description:
Combined smoke and carbon monoxide alarm Eura CSD-39A2 provides detection of both smoke (fire) and CO (carbon monoxide) in one unit. The device is designed for residential and small commercial use to warn occupants of fire and toxic gas hazards. Suitable for installation in hallways, living rooms and bedrooms to provide early audible alerts and enhance indoor safety.