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Carbon Monoxide Alarm

Owners Manual

Model SF350RVUL

CAREFULLY READ AND UNDERSTAND THE CONTENTS 

OF THIS  INSTRUCTION MANUAL BEFORE USING THE 

ALARM. STORE THE MANUAL IN A SAFE PLACE FOR 

FUTURE  REFERENCE.  PAY PARTICULAR ATTENTION TO 
THE SAFETY WARNINGS.  PASS THE MANUAL ONTO ANY 

SUBSEQUENT USERS OF  THE ALARM.

 WARNING

Activation of your CO alarm’s audible horn  

indicates the presence of carbon monoxide (CO) 

which can KILL YOU.

 

WARNING

.  THIS  PRODUCT  IS  INTENDED  FOR  USE  IN 

ORDINARY  INDOOR  LOCATIONS  OF  FAMILY  LIVING  UNITS.  IT  IS 
NOT DESIGNED TO MEASURE COMPLIANCE WITH OCCUPATIONAL 
SAFETY AND HEALTH ADMINISTRATION (OSHA) COMMERCIAL OR 
INDUSTRIAL STANDARDS. 

INDIVIDUALS  WHO  ARE  AT  SPECIAL  RISK  FROM  CARBON 
MONOXIDE  EXPOSURE  BY  REASON  OF  AGE,  PREGNANCY 
OR  MEDICAL  CONDITION  MAY  CONSIDER  USING  WARNING 
DEVICES  WHICH  PROVIDE  AUDIBLE  AND  VISUAL  SIGNALS 
FOR CARBON MONOXIDE CONCENTRATION UNDER 30PPM. IF 
IN DOUBT CONSULT YOUR MEDICAL PRACTITIONER.

THIS CARBON MONOXIDE ALARM IS NOT:

 Designed to detect smoke, fire or any gas other than carbon 
monoxide.
 To be seen as a substitute for the proper servicing of fuel-burning 
appliances or the sweeping of chimneys.
To be used on an intermittent basis, or as a portable alarm for 
the spillage of combustion products from fuel-burning appliances 
or chimneys.

CAUTION

This carbon monoxide alarm is designed for indoor use only. Do not expose 
to rain or moisture. Do not knock or drop the alarm. Do not open or tamper 
with the alarm as this could cause malfunction. The alarm will not protect 
against the risk of carbon monoxide poisoning when the batteries have 
drained. The alarm will only indicate the presence of carbon monoxide gas 
at the sensor. Carbon monoxide gas may be present in other areas.

IMPORTANT

 Carbon monoxide is produced by the incomplete combustion of 
fuels such as wood, charcoal, coal, heating oil, paraffin, gasoline, 
natural  gas, propane, butane, etc.
Ideally, it is recommended that a carbon monoxide alarm 
should be installed in or near every room that has a fuel burning 
appliance such as any gas fireplaces, furnaces, room heaters, 
water heaters, cookers, grills, etc.
 Ensure that the alarm buzzer can be heard by all those who 
are intended to hear it. Seek medical help if it is suspected that 
a member of the household is suffering from carbon monoxide 
poisoning.
 If the alarm sounds, make sure to investigate the problem. 
Ignoring the alarm may result in sickness, injury or death. (CO 
may be present  even if nothing is seen or smelled by the user).
 Alarm should be tested once per week. If further details are 
required which do not appear in this manual contact Service at 
847 955 4016.

This pack contains:  One alarm, 3 ‘AAA’ batteries, Battery compartment 

cover, Screw pack, Mounting bracket, Owners Manual

IMPOR

TANT INFORMA

TION

 ON INSIDE OF LID

INFORMA

T

IONS IMPOR

TANTES SE 

TR

OUVE

N

T A L

’IN

TÉRIEUR DO CO

VERCLE

TEST

SILENCE AL

ARM

ESSAI

ALARM MO

VE 

TO

FRESH AIR

ALARME

SE DÉPLA

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À L

’AIR FRAIS

PO

WER

MARCHE

CARBON MONO

XIDE ALARM

A

VER

TISSEUR MONO

XYDE DE CARBONE

CO Alarm

“AAA” Batteries

Screws w/Anchors

Battery Compartment
Cover

Mounting Bracket

INTRODUCTION

Thank you for purchasing this alarm which is designed to detect the  
presence of carbon monoxide. This manual contains information on 
the installation and operation of the CO alarm. The green light flashes 
at approximately 60-second intervals to indicate the alarm is operating 
correctly. The red light will flash continuously and the horn will sound 
if carbon monoxide is detected. The alarm is suitable for use in areas 
where cooking and heating appliances burn fuels such as wood, 
charcoal, coal, oil, gas, etc.
This carbon monoxide alarm is designed to detect carbon monoxide gas 
from any source of combustion.

WHAT IS CARBON MONOXIDE?

Carbon monoxide (CO) is a highly poisonous gas which is released 
when fuels are burnt. It is invisible, has no smell and is therefore very 
difficult to detect with the human senses. Under normal conditions, in a 
room where fuel burning appliances are well maintained and correctly 
ventilated, the amount of carbon monoxide released into the room by 
appliances is not dangerous.
These fuels include: Wood, coal, charcoal, oil, natural gas, gasoline, 
kerosene, and propane.
Common appliances are often sources of CO. If they are not properly 
maintained, are improperly ventilated, or malfunction, CO levels can rise 
quickly. CO is a real danger now that homes are more energy efficient. 
“Air-tight” homes with added insulation, sealed windows, and other weath-
erproofing can “trap” CO inside.
SYMPTOMS OF CO POISONING
These symptoms are related to CO POISONING and should be dis-
cussed with ALL household members.
Mild Exposure:
Slight headache, nausea, vomiting, fatigue (“flu-like” symptoms).
Medium Exposure:
Throbbing headache, drowsiness, confusion, fast heart rate.
Extreme Exposure:
Convulsions, unconsciousness, heart and lung failure. Exposure to 
carbon monoxide can cause brain damage, death.
WARNING!
Some individuals are more sensitive to CO than others, including people 
with cardiac or respiratory problems, infants, unborn babies, pregnant 
mothers, or elderly people can be more quickly and severely affected by 
CO. Members of sensitive populations should consult their doctors for 
advise on taking additional precautions.

IN WHICH ROOM TO PUT THE ALARM

Installing CO Alarms in Recreational Vehicles or Mobile Homes.
For minimum security, a CO Alarm should  be centrally located outside of 
each separate sleeping area in the immediate vicinity of  the bedrooms. 
For more security, install additional Alarms in each separate bedroom. 
The Alarm should be located at least 6 inches (152mm) from all exterior 
walls and at least 3 feet (0.9 meters) from supply or return vents.

 Warning!

Test units after the RV has been in storage, before each trip, and once 
a week while in use. Failure to test units used in RVs as described may 
remove your protection.
In general, install CO Alarms:

 Inside every bedroom, especially if people sleep with the door 
partly or completely closed.
 In the hall near every sleeping area. If your home has multiple 
sleeping areas, install a unit in each. 
 For additional coverage, install Alarms in all rooms, halls, and 
storage areas, where temperatures normally remain between 40°F 
(4°C and 38°C ).

Ideally an alarm should be fitted in or near every room that contains a 
furnace or fuel burning heat source. However, if there is more than one 
appliance the following points should be taken into account:

 An alarm should be installed in any family living unit containing a 
fuel-burning appliance or fireplace or having an attached garage.

WHERE NOT TO PUT THE ALARM

Do not place the alarm in the following areas:

Outside the building.
In or below a cupboard.
In a damp or humid area.
Directly above a sink or stove/oven.
 Next to a door or window or anywhere that would be affected by 
drafts.
 Where the air flow to the alarm would be obstructed by curtains 
or furniture.
 When dirt or dust could collect and block the sensor, and stop it from 
functioning.
 In an area where the temperature could drop below 40°F (4.4°C) 
or rise to above 100°F (37.8°C).
Where it could be easily knocked, damaged, or where it could be 
inadvertently removed.
Within 5 feet (1.5m) of any cooking appliance.

CARE AND MAINTENANCE OF THE ALARM

The alarm should be tested weekly by pressing and holding the test/reset 
button on the front of the alarm for several seconds. The alarm is pre-
calibrated at the factory and requires no maintenance other than to clean 
the outside casing occasionally with a cloth. Ensure that the holes on 
the front of the alarm are not blocked with dirt and dust. DO NOT USE 
CLEANING AGENTS, BLEACH OR POLISH.
The unit requires 3 x 1.5V alkaline batteries. The following are suitable
replacements: Gold Peak 24A LR03, Energizer E92 LR03
Use only the batteries listed. Use of batteries not listed may affect
performance of the unit.

USING THE ALARM

To activate the alarm, insert the 3 batteries which are included, fit the
battery compartment cover and close the detector lid (battery 
compartment cover cannot be fitted unless batteries are inserted.) 
When inserting the batteries, ensure the polarity is correct - ie: positive 
end of battery (+) aligns with the (+) symbol in the battery housing. The 
green and red lights will flash briefly and the horn will sound a short 
chirp.
Press the test/reset button and check that the red light flashes and the
horn sounds. The alarm is now operating and ready for use.





IMPORTANT INFORMATION ON INSIDE OF LID

INFORMATIONS IMPORTANTES SE TROUVENT A L’INTÉRIEUR DU COVERCLE

POWER

ALARM

MOVE TO

FRESH AIR

TEST

SILENCE ALARM

CARBON MONOXIDE ALARM

AVERTISSEUR MONOXYDE DE CARBONE

MARCHE

ALARME

SE D

ÉPLACER

À L’AIR FRAIS

ESSAI

Owners Manual

Model SF350RVUL 
Carbon Monoxide Alarm

IMPO

RT

ANT INFORM

AT

ION ON INSIDE OF LI

D

INFORMA

TIONS IMPO

RT

ANTES SE TROUVENT A L

’INTERIEUR DU COVERCLE

CARBON MONOXIDE ALARM

AV

ER

TISSEUR MONOXYDE DE CARBON

E

ESSAI

ALARM

E

SE DÉPLACER À L

’AIR FRAIS

MARCHE

Buzz

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Gas Inlet

Green 

P

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 L

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ht

Red Ala

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 Light

Te

st Butto

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Silence Ala

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TEST

SILENCE ALARM

ALARM MOVE TO

FRESH AIR

POWER

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