Outstanding Performance with less Maintenance. Up to a 5 year battery life!

KWJ’s WSN CO AA detects Carbon Monoxide levels from 0 – 1,000 ppm in ambient air and transmits the data wirelessly to the KWJ-WSN Dashboard. KWJ-WSN CO AA delivers outstanding battery life and low level health monitoring not provided by other off the shelf CO detectors.


Dimensions: 3.020″ x 2.100″ x 1.270″
Measures CO up to 1,000 ppm.
High Accuracy (± 5%)
State of the Art SPEC Sensor electrochemical cell
Range: 300ft (non line of sight)
Long Life/Low Power Battery Operation (approx. 4-5 years)
Free KWJ-WSN basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email.

Principle of Operation

Electrochemical CO, Ambient Diffusion
15 minutes after the battery is installed, the sensor will accurately measure the ambient CO level and send data to the KWJ-WSN Online Sensor Monitoring and Notification System. The data is stored in the online system and can be reviewed and exported. Notifications can be set up through the online system to alert the user when thresholds have been met or exceeded.

The KWJ-WSN CO is pre-configured with the following alert thresholds to provide essential data on low levels of CO and to protect you from immediately dangerous conditions:

CO exceeding 50 ppm
CO exceeding 125 ppm
CO exceeding 400 ppm
TWA (time weighted average) CO > 50 ppm

There are also several pre-configured thresholds that are user changeable to allow further customization of your alerts so you can receive notification about lower levels of CO.

Power Options

Sensors are powered by replaceable long-life AA batteries. Optional coin cell battery powered sensors are available. The coin cell version of these sensors is smaller in size (1.775” x 1.040” x 0.785” ) and includes a coin cell battery.

It is recommended that if you are using the coin cell battery option, you set heartbeat to no faster than one hour to preserve battery life.

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