SITERWELL Smoke Detector, 10 Year Fire Alarm with Photoelectric Sensor and Built-in Battery, Fire Detector with Low Battery and Fault Warning for House and Bedroom, UL Listed, GS526A, 4 Packs - Amazon.com
SITERWELL Smoke Detector, 10-Year Smoke Alarm with Photoelectric Sensor and Low Battery Warning, Fire Alarm with Built-in Battery and Fault Warning for Bedroom and House, UL Listed, GS526A, 3 Pack - Amazon.com
Honeywell XS100 user manual (English - 2 pages)
Honeywell XS100 review - Which?
SITERWELL Smoke Detector, 10-Year Smoke Alarm with Photoelectric Sensor and Low Battery Warning, Fire Alarm with Built-in Battery and Fault Warning for Bedroom and House, UL Listed, GS526A, 1 Pack - Amazon.com
Smoke Alarm (Honeywell XS100), Everything Else on Carousell