Based on this product's specifications, here are some alternatives and similar models
Smoke and carbon monoxide detector KIDDE 10Y29 — battery operated, 10-year sealed battery life
Summary description:
Combination smoke and carbon monoxide detector KIDDE 10Y29 is a battery-operated unit with a 10-year sealed battery life. Designed to detect both smoke and CO to warn occupants of fire and toxic gas risks. Suitable for homes and apartments, it provides continuous monitoring, simple installation and low maintenance thanks to its long-life power source and integrated alarm.