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3G Electric
FIRST ALERT CO400B Carbon Monoxide Detector, Electrochemical, 9V Battery - Carbon Monoxide Detectors
FIRST ALERTCarbon Monoxide Detectors

FIRST ALERT CO400B Carbon Monoxide Detector, Electrochemical, 9V Battery

<p>The FIRST ALERT CO400B is a reliable carbon monoxide detector designed for residential and light commercial use. It features an electrochemical sensor for accurate CO detection and a loud 85 dB alarm at 10 feet…

SKU 3G-OTH-551432

Brand
FIRST ALERT
Item
CO400B Carbon Monoxide Detector, Electrochemical, 9V Battery
Part Number
CO400B
Category
Carbon Monoxide Detectors
Available to Order
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Technical specs
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

FIRST ALERT
Manufacturer Part Number
CO400B
Type
CO Detector, Electrochemical
Features
Front Loading Battery
Includes
Mounting Anchors
Hush Mode
Yes
Standards
UL 2034
Alert Type
Sound
Sensor Type
Electrochemical
Battery Size
9V
Power Source
Removable Battery
Volume Level
85 dB @ 10 ft
ADA Compliant
No
Battery Location
Front
Visual Alert Type
LED
Connectivity Broad
None
Includes Batteries
Yes
Battery Locking Pin
Yes
Battery Backup [NEW]
No
Final Features Broad
Front Loading Battery
Backup Battery Broad DELETE AFTER PLAN
No
Interconnectivity Broad DELETE AFTER PLAN
No

Technical Documents

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FIRST ALERT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The FIRST ALERT CO400B is a reliable carbon monoxide detector designed for residential and light commercial use. It features an electrochemical sensor for accurate CO detection and a loud 85 dB alarm at 10 feet. The front-loading battery compartment simplifies battery replacement, and the included 9V battery ensures immediate operation. A test button and hush mode add convenience, while the battery locking pin prevents tampering. This model meets UL 2034 safety standards.</p><p>Ideal for facilities managers, contractors, and property owners in Singapore, the CO400B is available through 3G Electric. We offer SGD quotes on request, handle GST for local buyers, and provide fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What type of sensor does the FIRST ALERT CO400B use?

It uses an electrochemical sensor, which is known for accurate detection of carbon monoxide.

Does the CO400B come with a battery included?

Yes, it includes a 9V battery. The battery is front-loading and has a locking pin for security.

Used in

Common applications for FIRST ALERT
Outdoor worksite safety — First Alert SFA900 speaker used as an audible alarm for equipment warnings
Temporary facility alert systems — First Alert SFA900 speaker installed in portable shelters for emergency notifications
Light industrial machinery — First Alert smoke alarms placed in small workshops for fire detection
Residential backup alarms — First Alert carbon monoxide detectors used in on-site trailers for worker safety
Retail or office environments — First Alert SFA900 speaker deployed as a desk-mounted alert device for security systems
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FIRST ALERT Products

3G Electric supplies FIRST ALERT carbon monoxide detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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