Heiman HS1SA-E Zigbee Smoke Alarm vs Kidde Smart Smoke & CO Detector with Ring

Kidde Smart Smoke & CO Detector with Ring, because it detects carbon monoxide as well as smoke, needs no hub, sends free Ring app alerts and reduces cooking false alarms. Heiman HS1SA-E Zigbee Smoke Alarm wins on price, on SmartThings and Home Assistant integration and on its built-in light.

No. Heiman HS1SA-E Zigbee Smoke Alarm is a smoke-only device with no CO sensor and no CO alerts. Kidde Smart Smoke & CO Detector with Ring combines photoelectric smoke detection with an electrochemical CO sensor, including low-level CO alerts sent to the app.

Heiman HS1SA-E Zigbee Smoke Alarm does: it is a Zigbee device that needs a compatible hub for alerts and automations, though its siren works standalone. Kidde Smart Smoke & CO Detector with Ring connects to 2.4 GHz Wi-Fi on its own and also interconnects wirelessly with other Kidde alarms.

Both carry a built-in siren, and Heiman HS1SA-E Zigbee Smoke Alarm is rated above 85 dB, which owners repeatedly describe as much louder than its 60 mm body suggests. Kidde Smart Smoke & CO Detector with Ring also has a built-in siren and adds spoken app notifications for smoke, CO and low battery.

Heiman HS1SA-E Zigbee Smoke Alarm uses a replaceable CR123A cell rated for 5 years with low-battery alerts, though some owners report shorter real-world life and difficulty sourcing the exact cell. Kidde Smart Smoke & CO Detector with Ring uses two included AA batteries, warns in the app rather than chirping, and filters cooking steam.

Owners of a Zigbee hub who want cheap, discreet smoke sensors in several rooms, integrated with SmartThings or Home Assistant so smoke can trigger lights and notifications. If carbon monoxide coverage or hub-free operation matters, Kidde Smart Smoke & CO Detector with Ring is the better purchase.