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We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days from delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
The Universal Security Instruments MC304SB Carbon Monoxide Smart Alarm is designed for long-term, maintenance-free CO monitoring in homes, apartments, and mobile living spaces. Featuring a sealed 10-year battery, it delivers continuous protection without the need for regular battery changes, helping you stay focused on daily life even during power outages.
With a sealed 10-year power source included, this alarm provides ongoing carbon monoxide awareness while reducing the hassle of routine replacements. The device is designed to run quietly in the background, so you can enjoy everyday activities without constant alarm-related interruptions.
Smart Alarm Technology combines reliable sensing with resistance to false alarms. A single silence/test button provides quick control to quiet non-hazardous alerts while keeping the system attentive to real signals.
Mount the MC304SB on a wall or place it on a tabletop to fit various room layouts. A quick activation battery pull tab speeds setup, and the deactivation key enables safe battery handling. After deactivation, a tamper-resistant feature helps prevent reinstallation.
ETL listed to UL 2034 and approved by state and FHA standards, this alarm reflects decades of home safety improvements. The maintenance-free operation also helps reduce waste associated with battery disposal and offers potential cost savings on battery replacements over time (up to the noted figure in product materials).
Whether you’re outfitting a new home or replacing an older CO alarm, the MC304SB combines durable construction, easy operation, and long-term protection in a compact, unobtrusive package.
Q: How long does the MC304SB's battery last?
A: It uses a sealed 10-year battery for continuous CO monitoring with no routine replacements.
Q: Can I mount it on the wall or set it on a tabletop?
A: Yes, it supports wall mounting or tabletop placement, with a quick pull tab and a silence/test button for easy use.
We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.
We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.
We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.
To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.
Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.
When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.
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