Moes CO2 Air Quality Monitor Temp and Hum

Moes CO2 Air Quality Monitor Temp and Hum

Launch Year: 2023

Model: WSS-FB-CO2-U-MS

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Our review

Moes CO2 Air Quality Monitor Review: A Portable 3-in-1 CO2, Temperature and Humidity Display

Color screen, built-in battery and Alexa, Google Home and Home Assistant support, focused on CO2 rather than particulates.

The verdict

The Moes CO2 Air Quality Monitor is a three-in-one desktop unit: CO2, temperature and humidity, shown on a color screen and mirrored to your phone over 2.4 GHz Wi-Fi. Unlike most CO2 monitors in this class it works with Alexa, Google Home and Home Assistant through Tuya, and its built-in 2400 mAh battery lets you carry it from room to room for a few days of spot checks between charges. The catch is scope: there is no particulate, TVOC or carbon monoxide sensing, and the only alert it can raise is the air quality one, not temperature or humidity thresholds.

Best for
  • CO2 and ventilation tracking
  • Room-to-room spot checks
  • Alexa and Google Home homes
  • Tuya and Home Assistant setups

Pros

  • CO2, temperature and humidity in one unit
  • Color screen readable without a phone
  • Built-in 2400 mAh battery makes it portable between rooms
  • Works with Alexa, Google Home and Home Assistant (via Tuya)
  • Air quality alerts and automation support
  • Two year warranty

Cons

  • No particulate sensing: no PM0.3, PM1, PM2.5 or PM10
  • No TVOC, NOx, carbon monoxide or radon sensing
  • No temperature or humidity alerts, only air quality alerts
  • No Apple HomeKit, SmartThings, IFTTT or Matter support
  • Battery lasts around 40 hours, so continuous use means staying plugged in
  • 2.4 GHz Wi-Fi only, and the screen is not a touchscreen
  • Indoor only, with no weather resistance rating

Who is the Moes CO2 monitor for?

It fits someone whose question is ventilation rather than pollution: an office, bedroom or classroom where the air gets stuffy and you want a number on the wall to prove it. The color screen makes it readable at a glance without a phone, and because it has a built-in battery you can move it between rooms to find the one that never clears. Its integration list is broader than most niche monitors, covering Alexa, Google Home and Home Assistant, so the readings do not have to stay locked in one app.

What the Moes monitor measures

Three readings, all of them the comfort-and-ventilation kind. CO2 is the headline: indoors, high carbon dioxide is what causes stuffiness, poor sleep and trouble concentrating, and it climbs fast in a closed room with people in it. Temperature and humidity fill in the comfort picture, with humidity mattering for both mold risk when it stays high and skin and throat irritation when it drops too low. Air quality alerts can fire when readings cross the threshold, and the monitor supports automations, so a CO2 spike can be used to trigger a fan or a purifier in your smart home platform.

What to know before you buy

This is not a pollution monitor. There is no particulate sensing (no PM0.3, PM1, PM2.5 or PM10), no TVOC, no NOx, no carbon monoxide and no radon, so smoke, dust, pollen and off-gassing from cleaners or new furniture are all invisible to it. On alerts, only the air quality alert is supported: temperature and humidity thresholds cannot raise a notification. Apple HomeKit, Samsung SmartThings, IFTTT and Matter are unsupported, and Home Assistant support comes through the Tuya integration rather than a local one. The battery is rated at about 40 hours, which makes it portable for spot checks but not a cord-free permanent install, and it connects only on 2.4 GHz Wi-Fi. The screen is not a touchscreen, and the unit has no weather resistance rating, so it stays indoors.

Is the Moes CO2 monitor worth it?

Value here comes from the combination rather than any single spec: a readable color display, mainstream voice assistant support and a battery that makes it portable, all pointed at the one indoor reading most people actually act on. Two years of warranty coverage is longer than the category norm. If you need particulates or want temperature and humidity alerts, look at a broader monitor. If you want to see CO2 climb in the room you are sitting in and have Alexa or Google Home tell you about it, this covers that job.

Frequently asked questions

Does the Moes CO2 monitor work with Alexa and Google Home?

Yes. Both Alexa and Google Home are supported, as is Home Assistant through the Tuya integration. Apple HomeKit, SmartThings, IFTTT and Matter are not supported.

Does it measure PM2.5 or other particulates?

No. It measures CO2, temperature and humidity only. There is no particulate, TVOC, NOx or carbon monoxide sensing.

Can the Moes CO2 monitor run on battery?

Yes. It has a built-in 2400 mAh lithium battery rated at about 40 hours, and it recharges over USB-C. For permanent placement most people leave it plugged in.

Can it alert me when the room gets too hot or too humid?

No. Only air quality alerts are supported. Temperature and humidity are displayed and logged, but they cannot trigger an alert on the device.

What Wi-Fi does it need?

2.4 GHz. The 5 GHz band is not supported, so the phone doing the setup should be on the 2.4 GHz network.

At a glance

Summary

Everything this air quality monitor supports, grouped by category.

Size & Materials
3.9 × 3.5 × 1.6 in (98 × 90 × 40 mm)
Power
Wired (USB-C)
Connectivity
2.4 GHz WiFi
Display
LEDColor Screen
Integrations
Google HomeAlexaHome Assistant
Sensors
CO2TemperatureHumidity
Alerts
Air Quality Alerts

Price History

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Company
Moes logo

Moes

4.2/ 5 avg ratingChina flagHeadquartered in China

Moes is a smart home brand built largely on the Tuya platform, offering a wide range of switches, dimmers, thermostats, curtain motors and sensors in Wi-Fi and Zigbee versions. Its devices work through the Tuya/Smart Life app and integrate with Alexa and Google Home, with a Zigbee hub available for local control. Moes is popular for affordable, customizable wall switches and automation accessories.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

Dimensions

3.9 × 3.5 × 1.6 in (98 × 90 × 40 mm)

Weight

?

Power
Wired

USB-C

Battery Type

Built-in

Built-in Lithium Battery (2400mAh)

Battery Life

40 hours

Connectivity
2.4 GHz WiFi

YES

5 GHz WiFi

NO

Ethernet

NO

Bluetooth

NO

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

NO

Display
Screen

YES

Screen Type

LED

Color Screen

YES

Touch Screen

NO

Screen Size

?

Screen Resolution

?

Integrations
Google Home

YES

Alexa

YES

Apple HomeKit

NO

Samsung SmartThings

NO

Home Assistant

YES

IFTTT

NO

Matter

NO

Sensors
TVOC

NO

PM0.1

NO

PM0.3

NO

PM1

NO

PM2.5

NO

PM10

NO

CO

NO

CO2

YES

NOx

NO

Radon

NO

Temperature

YES

Humidity

YES

Atmospheric Pressure

NO

Ambient Light

NO

UV

NO

Occupancy

NO

Ambient Noise

NO

Alerts
Temperature Alerts

NO

Humidity Alerts

NO

Air Quality Alerts

YES

Low Battery Alerts

-

Features
Automations

YES

History Records

?

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