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INTRODUCTION
This user manual covers the following two
products, FireAngel SI-601 (Ionisation) Smoke
Alarm and SO-601 Toast Proof (Optical) Smoke
Alarm.
Congratulations! You’ve made a wise investment
in an innovative product and your personal
safety. The FireAngel smoke alarms covered by
this manual form part of a new generation of
domestic life safety products from FireAngel
Limited. The FireAngel range of products is
constantly being improved and expanded. Please
visit www.reangel.co.uk to nd out about the
latest additions to our product range.
IMPORTANT: This user manual
contains important information
regarding the operation of your FireAngel
smoke alarm. Ensure you read this user manual
fully before installing and operating the alarm.
If you are installing this smoke alarm for use by
others, you must leave this manual (or a copy
of it) with the end user.
SENSOR TECHNOLOGY
There are two main types of smoke alarm. The
SI-601 Standard Smoke Alarm uses an ionisation
type sensor to detect the presence of smoke.
Ionisation type smoke alarms are generally more
effective at detecting fast, aming res which
consume combustible materials rapidly and spread
re quickly. The SO-601 Toast Proof Smoke Alarm
uses an optical (photoelectric) type sensor which
is more effective at detecting slow burning res,
which can smoulder for hours before bursting into
ames.
TOAST PROOF = less sensitive to cooking
fumes. (Optical alarms are less prone to
nuisance alarms due to cooking fumes.)
For maximum protection, use both types of
smoke alarms on each level of your home