The 5 Best Water CO2 Sensors (2023 reviews)

It is important to have the well suited water co2 sensor. In the following post, we will help you to select the best water co2 sensors.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Yolink Water CO2 Sensor READ REVIEW

Best For elderly: Buy: Google Water CO2 Sensor READ REVIEW

Best With electricity: Buy: Kidde Water CO2 Sensor READ REVIEW

Best For Leak Detection: Buy: aqara Water CO2 Sensor READ REVIEW

Best For washing machine: Buy: Govee Water CO2 Sensor READ REVIEW

Best Overall: Yolink Water CO2 Sensor

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The yolink water co2 sensor is long-lasting, rigid and fits well with your regular usage like a dream. The Sensors have replaceable aaa batteries that should last five years before being changed, and the phone app shows you each sensor's battery level. It gets a strong 76db signal from that far away and a level below in a finished basement. It allows the sensors to easily and quickly communicate with the hub. The base station will alert the controller sitting outside in the clamshell next to the water supply to spring into action. It is great for integration of valve control outside the home.

The LoRa wire standard offers good connectivity range, and the response is very fast. It offers great flexibility and also comes in during blowing rains. It is easy to use along with ifttt integration.

• Easy set up with hub, sensor and iphone
• Inexpensive way to protect your home from water damage
• Very reliable and smart solution for a peace of mind

Best For elderly: Google Water CO2 Sensor

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For a low asking price, google water co2 sensor has managed to overwhelm their customers by packing as many features as they could. This smoke detector definitely has a better design than the last nest protect, its has a smaller form factor so it can fit snuggly into more places. The Blue light glows when the nest protect is active and ready to be connected or tested with a safety checkup. As like all Nest products, the nest protect is stylish, easy to install and works perfectly. The Nest smoke and carbon monoxide alarm has sensors with a pathlight option that functions as an optional nightlight.

The Setup is easy and painless, especially with an existing Nest thermostat. The Protects have a pathlight option that functions as an optional nightlight. It works with forced air as well as hot water heat.

• Excellent and easy to physically install
• Easy to use and will last a long long while
• Voice notifications are loud and clear

Best With electricity: Kidde Water CO2 Sensor

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Next on the list, we've got yet another sensor that manages to win our hearts. It's the kidde water co2 sensor and it's widely considered as one of the best convenient sensor you can buy. This is an upgraded unit with combustible gas alarm as well as CO. The 110 volt plug can be detached from the back of the unit and a built in extension cord unwound to facilitate a good install location. The internal clock runs even if you remove the battery and unplug the unit. It covers even more explosive gases than it claims on the package.

This alarm does more, it is 1000 times better quality and it includes a built-in battery backup. The signal is very loud. It is blending very well with the wall. This unit also includes a co alarm and it can be easily mounted in multiple positions / situations.

• Easy to install and reliable company
• Accurate and sensitive when the electricity is on
• Installation is easy, just plug it in

Best For Leak Detection: aqara Water CO2 Sensor

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Aqara offers a variety of sensor for personal choice and yet maintaining quality in all the variants. These work great as a binary sensor and can be used to sense lots of things since you can wire just about any switch across the two screws in the bottom. It can easily be modified into other type of sensor. It has a water tight sealed battery compartment, and two screws on the bottom. The notifications are fast, and the set up is a breeze.

This provides a little peace of mind. It does not show temperature like the smartthings leak sensor. It can be used after exposure to water. If you're looking to get some, these are nicely priced and maybe can save you thousands of dollars in damages.

• Works via hub to apple homekit just fine
• Very simple devices that are a little fussy to pair
• Shows wet / dry and battery life

Best For washing machine: Govee Water CO2 Sensor

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If you often find yourself confused about convenient and suitable sensor, govee water co2 sensor should be your first option for buying. These Water detection sensors work great if you only want to utilize the Govee App as one more app for automation. It comes with 2 groups of back water detector probes & 1 group of front probes for pipe dripping detection. Sensors detect both standing and dripping water, an audible alarm, and on the phone. The alarm sounds even with a small amount of water. The hub is connected to your WiFi that gives you real-time alerts if a sensor is detecting a water leak.

The best part, is there is a battery level on each sensor in the app. It is easy to install sensors, hub and connectivity to govee home smart apps. They are very sensitive to water and the notification response time is immediate.

• Very loud and distinctive water alert from the pucks, will not stop unless dried
• Well designed and a must to prevent disasters
• Lot of satisfied buyers