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FIRST ALERT Carbon Monoxide Alarm: Removable Battery, CO Detector - Carbon Monoxide Detectors
FIRST ALERTCarbon Monoxide Detectors

FIRST ALERT Carbon Monoxide Alarm: Removable Battery, CO Detector

The FIRST ALERT CO400B is a carbon monoxide detector with an electrochemical sensor and a front-loading 9V removable battery. It features a sound alert at 85 dB @ 10 ft, a test button, hush mode, and a battery…

SKU 3G-OTH-551432

Brand
FIRST ALERT
Item
Carbon Monoxide Alarm: Removable Battery, CO Detector
Category
Carbon Monoxide Detectors
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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
Test Button
Yes
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
Final Features Filter Broad
Test Button
Backup Battery Broad DELETE AFTER PLAN
No
Product Features Broad DELETE AFTER PLAN
Test Button
Interconnectivity Broad DELETE AFTER PLAN
No
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FIRST ALERT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The FIRST ALERT CO400B is a carbon monoxide detector with an electrochemical sensor and a front-loading 9V removable battery. It features a sound alert at 85 dB @ 10 ft, a test button, hush mode, and a battery locking pin, meeting UL 2034 standards. Includes mounting anchors.

Frequently Asked Questions

What is the FIRST ALERT CO400B carbon monoxide alarm used for?

The FIRST ALERT CO400B detects carbon monoxide gas using an electrochemical sensor and sounds an 85 dB alarm at 10 ft. It is used in homes, offices, and industrial facilities to alert occupants of dangerous CO levels, helping prevent poisoning.

What are the specifications of the FIRST ALERT CO400B?

The FIRST ALERT CO400B features an electrochemical sensor, a front-loading 9V removable battery, and a sound alert at 85 dB @ 10 ft. It includes a test button, hush mode, battery locking pin, and meets UL 2034 standards. Mounting anchors are included.

Where to buy the FIRST ALERT CO400B worldwide?

3G Electric supplies the FIRST ALERT CO400B carbon monoxide alarm to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine FIRST ALERT products. Contact us for availability and lead time.

How to install the FIRST ALERT CO400B carbon monoxide detector?

Install the FIRST ALERT CO400B by mounting it on a wall or ceiling using the included anchors, at least 5 ft from the floor. Insert the 9V battery into the front-loading compartment, secure with the locking pin, and press the test button to verify operation.

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

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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