Ozon (O3) sensor - Winsen ZE25A

Weight: Help
5 g

Small, yet effective ozon (O3) sensor.

On stock: Help 9

PLN 149,00
PLN 121,14 w/o VAT
EUR 34,65
EUR 28,17 w/o VAT

Small, but very interesting O3 digital sensor. Detection range up to 2 ppm with resolution 0.001 ppm (1 ppb).

For now, our knowledge is based on datasheet only. We have tested previous sensor version ZE27-O3, but with resolution 10 ppb is not so interesting to make measurements of atmospheric air.

So, we expect much more from ZE25A-O3, and yes, there is a chance that it will be supported by NAM.


  • Power suppply: 3.7V - 5.5V (no reverse voltage protection!)
  • Working range: 0 - 2 ppm
  • Resolution: 0.001 ppm (1 ppb)
  • Working temperature: -10°C - 55°C
  • Life span: 2 years (in air)
  • UART interface


Read more details in attached datasheet.

Set includes:

  • Sensor ZE25A-O3
  • Connection cable