The Ministry of Health says 6,000 children are admitted each year for ‘housing-sensitive hospitalisations’. These children have been found to be nearly four times more likely to be re-hospitalised and 10 times more likely to die in the following 10 years. We cannot continue to accept this.
— Hon Phil Twyford - Minister for Housing and Urban Development

Protect Our Children


The Sensor Node CO2 enables affordable and effective monitoring of carbon dioxide concentrations as well as temperature and humidity in the class room environment. Protecting our children is our first priority. We are also working on more advanced features such as partculate matter and VOC sensing. Get in touch to learn more about current developments.


Data On The Go

The Sensor Node app allows you to connect up to the cloud to see your data any time, anywhere.


WiFi and Sigfox

Sensor Node CO2 will be available with both Low Power Wide Area Network and WiFi. Where ever you need to connect it, it’s good to go.


Carbon Dioxide

Studies conducted by the University of Otago have shown that indoor air pollution is a serious problem in New Zealand schools.


VOC and Particulates

We are currently working on adding optional state of the art VOC and particulate matter sensing technologies.


Alert notifications

The Sensor Node CO2 (for Schools Variant) can be programmed to emit a visual alert, as well as pushing an alert to cloud.



Sensor Node CO2 will be battery powered. Future add-ons including particulate matter sending will include a standard 5V USB input. A phone charger will do just fine!


An Educational Tool

As well as monitoring the environmental conditions, the Sensor Node for Schools has the potential to be used as a teaching tool. We can protect our children through education and awareness.



Feature Details
Connectivity WiFi and Sigfox
Power Micro-USB (5VDC)
Measurement Interval 15 minutes
Physical Dimensions 10cm x 6cm x 3cm
Mounting Free Standing / Wall Mount
Measurement Operating Range Units Accuracy
Relative Humidity 0 -100 % % 3.0%
Temperature -40 to 125 °C 0.3
Carbon Dioxide 0 – 40,000 PPM 30 PPM + 3% MV
Mass Concentration (low) 0 ug/m3 – 100 ug/m3 ug/m3 10
Mass Concentration (high) 100 ug/m3 – 1000 ug/m3 % 10%
Particle Detection Size um PM1.0; PM2.5; PM4; PM10