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Recommended Accessories
Expert Recommended Accessories
Selected by Bob, our Expert
Required Accessories
9
These accessories are required to properly setup/install this product.
Optional Accessories
10
Features
- Tamper Resistant
- Featuring a tamper resistant locking pin, the First Alert CO250B prevents removal of the battery, making it perfect for apartments, hotels or dorms.
- Alarm Reset
- The First Alert CO250B will automatically reset when the carbon monoxide gas clears.
Keeping your home and family safe since 1958, First Alert is built on reliability, quality and trustworthiness. Continuing to create innovative products, you can count on First Alert to make your home a safer place. With an electrochemical sensor for carbon monoxide, the Smoke and Carbon Monoxide Alarm features comprehensive protection. Featuring an End of Life Signal, you will get audible notification when it's time to replace your alarm.
Specifications
CO250B
Overview
Product Category
Furnace
UPC
29054003928
General Information
Type
Carbon Monoxide Alarm
Product Category
Furnace
Power Source
Battery
Interconnectable
No
Sensor Type
Sensor Type
Electrochemical sensors detect Carbon Monoxide gases in your home. Photoelectric sensors detect visible fire particles that can be associated with a slow smoldering fire. Ionization sensors detect invisible fire particles that can be associated with fast flaming fires.
Electrochemical
Performance
Minimum Operating Temperature
40 F
Maximum Operating Temperature
100 F
Maximum Sound Level
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
85 dB
Electrical Data
Battery Type
9V
Battery Included
Yes
Dimensions
Product Height
4 1/4 Inches
Product Width
4 1/4 Inches
Product Depth
1 29/48 Inches
Product Weight
1 Pound
Warranty Information
Warranty
Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
7 Years
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Product Q&A
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First Alert - Carbon Monoxide Alarm - Battery Operated
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