Description
SF 450EN, Battery Operated, EN 50291, KitemarkedThe SF 450EN carbon monoxide alarm is fully guaranteed for 6 years and is designed for a six to seven year life under normal operating conditions. It is approved and kitemarked to the European Standard EN 50291: 2001. No maintenance is required during the life of the alarm ; no batteries, sensors or other parts will need replacing in that time. When the alarm is sounding the batteries will last up to 5 days - after this time the alarm will need to be replaced. Mains wiring is not required ; batteries supplied are pre-fitted. Alarm is an 85 decibel (at 3 m) buzzer and a visual warning. Alarm levels ; 50 ppm between 60 and 90 minutes, 100 ppm between 10 and 40 minutes and 300 ppm less than 3 minutes. There is a test facility, a self-check function and an end of detector life audible warning. Operating temperature range is -10 °C to +40 °C. Humidity range 30 to 90% RH. May be wall mounted with fixing kit provided, or be free standing, therefore suitable for use in the home and on holiday.
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