- Edmonton Stock: 10
Carbon Monoxide Alarm · 9V Battery Operated · Electrochemical Sensor · BRK CO400A
What this product is for
This battery-operated carbon monoxide alarm is used to detect elevated CO levels in residential and similar indoor applications. It uses an electrochemical sensor and a loud 85 dB alarm to provide local warning when dangerous carbon monoxide is detected.
Use for
Use for homes, apartments, cottages, and other indoor spaces where a standalone CO alarm is required or preferred. Suitable where battery-only operation is needed, including locations where maintaining protection during a power outage matters.
Avoid for
Avoid using this unit as a smoke alarm, heat detector, or interconnected building alarm device. Do not use it outdoors, in wet locations, or where a hardwired or plug-in CO alarm is specifically required by the project design or local code.
Best for
Best for straightforward CO protection where electricians, contractors, or property managers want a simple battery-operated alarm with replaceable 9V battery serviceability. Also useful for retrofit applications where no AC power connection is desired.
Installed in
Typically installed on a wall or placed on a tabletop in bedrooms, hallways near sleeping areas, and other occupied rooms, following the manufacturer instructions and applicable Canadian code requirements. Approximate unit size is 5 in L x 3.4 in W x 1.4 in D (127 x 86 x 36 mm).
Why this product exists
This product provides dedicated carbon monoxide detection without requiring branch-circuit power. A battery-only CO alarm is commonly chosen where simple installation, portability, and operation during outages are key buying factors.
Compared with similar products
Compared with plug-in or hardwired CO alarms, this model does not require an electrical box or receptacle and continues operating independently of utility power as long as the battery is maintained. Compared with combination smoke/CO alarms, it is a dedicated CO-only device for applications where separate detection is preferred.
Typical guidance: battery-operated CO alarms are often selected for retrofit work and supplemental protection in sleeping areas. Actual device placement and code compliance depend on the building layout, appliance locations, and local electrical and fire code.
Specifications
- Type: Carbon monoxide alarm
- Power source: Battery operated
- Battery: One replaceable 9V battery
- Sensor type: Electrochemical
- Alarm output: 85 dB at 10 ft (3 m)
- Controls: Single test/silence button
- Features: End-of-life warning, low-battery indication, easy-access battery compartment
- Mounting: Wall mount or tabletop placement
- Approvals: UL 2034 listed
- Warranty: 7-year limited warranty
- Approximate dimensions: 5 in x 3.4 in x 1.4 in (127 x 86 x 36 mm)
- Colour: White
Minimum Order $20
We accept the following payment methods:

Credit Card can offer cardholders convenience, security, rewards, and the opportunity to build a healthy credit history.
Click here for Contractor Cash Account
Trade Credit is a standard financing option for contractors and construction companies to obtain supplies and keep their projects moving. We offer 30-day credit terms to trade contractors on approved applications only.
Click here for Contractor Credit Account 
(Contractor Accounts)
Standard Shipping-Free on orders over $249 in Metropolitan Areas / $499 in Rural Areas
(All Other Accounts)
Standard Shipping-Free on orders over $499
Minimum Order Is $20
Freight Surcharge Apply To Oversized/Over-Weight Items(Not Limited To):
- PVC and EMT Pipe
- Wire and Cable
- Items over 48 inches in length
Surcharges are applied to items on an individual basis regardless if the rest of the order meets prepaid levels. If a freight line appears at the time of check out it only applies to the Items carrying a surcharge and not the entire basket of goods.
Shipping Options:
- A courier can deliver to your home, office, or your job site
- Pick up at local depot near you (applies to the following locations)
Edmonton Warehouse 8135 Roper Rd Edmonton, T6E 6S4, AB
Burnaby Warehouse 5608 Goring St Burnaby, V5B 3A3, BC
Orders are typically delivered within two to eleven business days. The transit time begins the first full shipping day after your order leaves our warehouse. Please allow an additional 2-5 days for delivery to remote locations, additional fees may apply.
THE FOLLOWING APPLIES TO STANDARD SHIPPING OPTIONS
- We cannot deliver to P.O. boxes.
- A signature may be required for shipments over $500.
- No weekend delivery.
- Wire & cable, EMT or PVC conduit, tube lamps 4ft or greater, and 10ft ground rods & mast pipes have special conditions.
Standard Shipping cost on orders less than $499
Total shipping cost = "Per Shipment" cost + "Per Item" cost. The "per item" cost is listed in terms of price per pound.
Product Group | Per Shipment* | Per Item |
|---|---|---|
Boxes | $6.99 | $1.49/lb |
Conduit & Raceway | $149.99 | $2.49/lb |
Connectors & Fittings | $5.99 | $1.19/lb |
Data & Structured Home | $5.99 | $1.19/lb |
Distribution Equipment | $5.99 | $1.19/lb |
Emergency Lighting | $6.99 | $1.49/lb |
Heating & Ventilation | $6.99 | $1.49/lb |
Lighting Controls | $5.99 | $1.19/lb |
Lighting Indoor | $6.99 | $1.49/lb |
Lighting Outdoor | $6.99 | $1.49/lb |
Tools | $4.99 | $.99/lb |
Wire & Cable | $49.99 | $2.29/lb |
Wiring Devices | $5.99 | $1.19/lb |
Any combination of the above items | Highest applicable per-shipment charge | As above |
Effective Date: August, 15, 1998
At Evolt Electrical Supply, customer satisfaction is our top priority. Please review our return policy below:
Returns
Defective Items:
- If you receive a defective item, you may return it for a replacement or refund within 30 days of purchase.
- To initiate a return, please contact our customer service team with your order number and a description of the defect.
Non-Defective Items:
- We do not accept returns for non-defective items. All sales are final once the product is shipped or ordered from the manufacturer. In certain circumstances we may amend this so feel free to contact our customer service team.
Return Process
Authorization:
- Before returning any items, you must obtain a Return Merchandise Authorization (RMA) number from our customer service team. Returns without an RMA number will not be accepted.
- Backordered items can not be cancelled if the item is in transit from the manufacturer, contact us to review.
Shipping:
- Customers are responsible for the return shipping costs. We recommend using a trackable shipping service or purchasing shipping insurance.
Condition:
- Returned items must be in their original packaging and condition. Any items returned damaged due to improper packaging or misuse will not be eligible for a refund or replacement.
Refunds
- Once we receive and inspect your returned item, we will notify you of the approval or rejection of your refund.
- Approved refunds will be processed within [7] business days and a credit will automatically be applied to your original method of payment.





