SITERWELL A4602A-7 Plug-In Carbon Monoxide Detector

SITERWELL A4602A-7 is listed as a plug-in carbon monoxide detector with a claimed 10-year backup battery. Its compact listed dimensions may suit a fixed outlet location, while the feature text also describes it as portable for travel.

At a glance

Electrochemical CO sensor with an audible alarm, according to the listing.
The feature description claims a 10-year backup battery for outages or loss of main power.
Listing describes green for normal operation, yellow for fault and red for alarm, plus a one-touch silence function.
Compact listed dimensions are 2.24"D x 3.62"W x 2.24"H.

Price

$51.99Save 14%

Reference price: ~~$60.67~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Plug-in power setup is described as straightforward, and customer feedback also reports ease of use.
The claimed battery backup is intended to keep the detector operating during power interruptions.
Status-light colors and audible warning provide distinct listed notification methods.

Technical specifications

11 specifications

Identity
Brand	SITERWELL
Model	A4602A-7
Color	White
Sensor type	Electrochemical
Alarm	Audible

Power and battery
Power configuration	Corded Electric

Dimensions and installation
Dimensions listed	2.24"D x 3.62"W x 2.24"H
Weight listed	6.4 ounces

Operating conditions and materials
Operating humidity	25~95%RH non-condensing
Upper temperature rating	37.8 °C
Enclosure material	ABS

What to know before buying

Listing details to confirm

Listing details conflict: the title describes plug-in power and a 10-year battery, while the supplied power field says Corded Electric and the product-feature copy claims backup batteries. It also calls the unit portable and gives a separate size of 4.72*2.76*1.65inch, inconsistent with the listed dimensions. A feature bullet says 2-Pack while item quantity says 1. Confirm power, battery duration, size and selected quantity before buying. The stated backup runtime and portability are not confirmed by the supplied specifications.

Who is it for?

A good fit for

Buyers seeking a plug-in CO detector with a listed electrochemical sensor and audible alarm.
People who want a compact detector for a chosen outlet location, after confirming the actual dimensions and power arrangement.

Less suited to

Buyers who need confirmed battery-runtime details or a clearly verified travel configuration.
Buyers requiring a smoke detector or a combined smoke-and-CO alarm.

SITERWELL A4602A-7 Plug-In Carbon Monoxide Detector · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 112 ratings

5 stars90%90%
4 stars6%6%
3 stars3%3%
2 stars0%0%
1 star1%1%

Customer feedback reports ease of use, functionality and quality positively, including reports that setup is as simple as plugging it in. Battery life receives mixed feedback. That concern matters because the listing's claimed long-term backup is not specified consistently, so buyers should confirm the battery arrangement and expected runtime rather than treating the claim as settled.

Positive themes

Customers report easy setup and positive impressions of functionality and quality.

Mixed feedback

Battery life receives mixed feedback.

Frequently asked questions

Does this detector include battery backup?

The title and feature text claim a 10-year battery or battery backup, but the power field lists Corded Electric and no backup duration is independently specified. Confirm the exact selected model and battery arrangement.

Can it be used for travel?

A feature bullet calls it portable, but the supplied dimensions conflict with another size given in that same listing. Verify the physical dimensions and power needs before relying on it for travel.

Is this a smoke and carbon monoxide combination alarm?

The supplied product details describe a carbon monoxide detector only. They do not establish smoke detection.