FIRST ALERT Carbon Monoxide Alarm: Plug-In, Battery Backup, CO Detector, Electrochemical
The FIRST ALERT Carbon Monoxide Alarm (MPN CO605B) is a plug-in CO detector with electrochemical sensor and battery backup, powered by two included AA batteries. It features a front-loading battery design, a test…
SKU 3G-OTH-551438
Need installation or engineering help?
Ask a question
Product Description
The FIRST ALERT Carbon Monoxide Alarm (MPN CO605B) is a plug-in CO detector with electrochemical sensor and battery backup, powered by two included AA batteries. It features a front-loading battery design, a test button, and a hush mode, emitting an 85 dB sound alert at 10 ft. Compliant with UL 2034, this unit provides essential carbon monoxide detection for industrial facilities.
Frequently Asked Questions
Is the FIRST ALERT Carbon Monoxide Alarm: Plug-In, Battery Backup, CO Detector, Electrochemical available from 3G Electric?
Yes — 3G Electric supplies genuine FIRST ALERT products, available to order with worldwide shipping. Contact us for current lead time.
How do I get a quote for the FIRST ALERT Carbon Monoxide Alarm: Plug-In, Battery Backup, CO Detector, Electrochemical?
Click "Request a Quote" on this page or add the product to your RFQ cart. Our engineers will respond within 24 hours with pricing, lead times, and technical recommendations.
Does 3G Electric provide technical support for carbon monoxide detectors?
Yes, our team of experienced engineers provides full technical support including product selection, installation guidance, commissioning, and after-sales service for all carbon monoxide detectors we distribute.
Used in
Common applications for FIRST ALERTFIRST 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.


![FIRST ALERT CO Alarm: Removable Battery, CO Detector, Electrochemical, Removable Battery (MPN CO250LB). Key specifications — Sensor Type: Electrochemical; Features: Hush Button; Volume Level: 85dB at 10 feet; Battery Size: 9V; Battery Location: Back; Includes: Battery; Brand: FIRST ALERT; Battery Backup [NEW]: No.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F6a6646a1-3f4f-4d5f-9d86-ca67925114b2.jpg&w=200)
![FIRST ALERT Carbon Monoxide Alarm: Removable Battery, CO Detector, Electrochemical, Limited (MPN 1039727). Key specifications — Sensor Type: Electrochemical; Features: Front Loading Battery; Volume Level: 85 dB @ 10 ft; Battery Size: AA; Battery Location: Front; Includes: Mounting Anchors; Brand: FIRST ALERT; Battery Backup [NEW]: No.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2F3716cc5c-8e2f-44df-b983-47b5e71af7d4.jpg&w=200)


![FIRST ALERT Carbon Monoxide Alarm: 10 Year Sealed Battery, CO Detector, Electrochemical (MPN CO710). Key specifications — Sensor Type: Electrochemical; Volume Level: 85 dB @ 10 ft; Battery Size: 3V; Includes: Battery; Brand: FIRST ALERT; Battery Backup [NEW]: No; Form Factor [NEW]: Slim Profile; Test Button: Yes.](/img/p?u=https%3A%2F%2Foxalncjenpflyqfncuhe.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Fproduct-assets%2Fgrainger%2Fd948317b-2049-416c-892d-01d445ac32d4.jpg&w=200)