Up to 37% off
More from Moes →2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector with Battery Backup, Temp Humidity LCD Display US Plug(Non-Smart)
$28.99–$55.99Save up to 34%
In stock at moeshouse.com
This MOES 2nd Gen 4-in-1 detector plugs into a wall outlet and monitors carbon monoxide, smoke (photoelectric), temperature, and humidity on a color LCD. It has an 85 dB alarm with flashing light and a 1000mAh rechargeable backup battery. It's non-smart, priced $28.99 for one or $55.99 for two.
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Highlights
- CO, photoelectric smoke, temperature, humidity
- Color LCD with adjustable brightness
- 85 dB alarm with flashing light, 3-level alert
- 1000mAh rechargeable backup battery
- Plug-in, no wiring
Best for
Renters and travelers who want combined CO and smoke detection without installing anything.
Things to consider
- Non-smart: no app alerts when you're away
- The listing doesn't name a safety certification such as UL 2034 or UL 217; check before relying on it as a primary alarm
- Plug-in placement is low on the wall, while smoke rises
Key specs
| Price | $28.99–$55.99 |
|---|---|
| Model | NA503E |
| CO range | 0-999 ppm (±10%) |
| CO alarm threshold | 49 ppm default |
| Smoke sensor | Photoelectric |
| Backup battery | 1000mAh rechargeable |
| Size | 125.5 x 60.5 x 36.3 mm (excl. plug) |
Our take
A handy portable extra layer of protection. Confirm certification for primary use.
2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… at a glance
| Brand | Moes |
|---|---|
| Price | $28.99–$55.99 (some options up to 34% off) |
| Type | Smart Security |
| Options | 1 version, 2 pieces |
| Availability | In stock at moeshouse.com |
| Coupon | ALEKSANDRBODNAR |
| Returns | 60-day window from delivery, but only for new, unused items with all packaging. Wrong… |
Price check
At $28.99, the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… is mid-range for Moes, whose 259 listed products run $4.99 to $559.99.
Some options are on sale, up to 34% below their listed price; the discount depends on the option you choose. Sale prices can end without notice, so check the live price before you order.
Similar items from other brands we track run $15.96 to $24.99.
Frequently asked questions
Does the MOES 4-in-1 detector work during a power cut?
Yes, a 1000mAh rechargeable battery keeps it running during outages.
Will it send alerts to my phone?
No, it's a non-smart model with local alarms only.
Is the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… on sale?
Yes, some options are discounted, up to 34% off; it currently sells for $28.99–$55.99. The exact saving depends on the option you pick, so check it on moeshouse.com.
Is there a coupon code for the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector…?
Moes's store-wide code ALEKSANDRBODNAR can be entered at checkout on moeshouse.com. Moes sets the discount, and some items or sale prices may be excluded.
What is Moes's return policy?
60-day window from delivery, but only for new, unused items with all packaging. Wrong items get free returns; change of mind, ordering by mistake or disliking the color or quality are not eligible or are at your cost.
How long does Moes take to ship?
Ships worldwide, mostly from China. Free standard shipping over $29.90 ($5 below that) and free express over $299; US e-Packet orders usually take 7 to 21 business days after 2 to 4 days of processing.
What options does the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… come in?
Version: US Plug. Pieces: 1 PC, 2PCS(Better Value).
Where can I buy the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector…?
The 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… is sold directly by Moes on moeshouse.com. The Shop now button on this page goes straight to the product there, and code ALEKSANDRBODNAR can be applied at checkout.
Is the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… in stock?
Yes. Moes lists it as in stock on moeshouse.com as of our latest check. Stock and prices refresh throughout the day.
Is Moes a legit store?
MOES is a smart buy for DIY smart-home builders who already use Tuya, Smart Life, Zigbee or Matter and want switches, sensors and blind motors for far less than name-brand equivalents. Skip it if you want hassle-free returns, since change-of-mind returns aren't accepted, or if you need gear fast, since standard orders ship from China. Before ordering, confirm the US or EU version, whether a neutral wire is required, and whether you need a hub. Our full Moes review covers shipping, returns and what to check before ordering.
Is the 2nd Gen 4-in-1 Plug-in Smoke & Carbon Monoxide Detector… expensive?
At $28.99 it is mid-range for Moes ($4.99 to $559.99 across 259 products), and similar items from other brands run $15.96 to $24.99.
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