CO2 Mini Kit for micro:bit _RPI_CAB_ETH They are third-party tested for

They are third-party tested for the equivalent of over 10 years of UV exposure

These wheels are 148mm diameter and 70mm wide

2023  We have updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen

plus 75+ legacy desktop applications (no longer being updated)

a mere 17mm long

CO2 Mini Kit for micro:bit _RPI_CAB_ETH They are third-party tested forThis CO2 sensor board connects to the micro: bit through ring connectors and functions as a true CO2 sensor, providing accurate measurements of CO2 levels, temperature, and relative humidity. To make things more helpful when working out the different levels of CO2, the LED produces three different colours Green, Orange and Red. It also includes reverse polarity protection, adding an extra layer of safety to your setup. Note: micro: bit is NOT included