You can purchase it through our online store via the link below:
https://www.andatechdistribution.com.au/products/alcosense-zenith-breathalyser-sensor
Please note to check if your unit uses a pressure or non-pressure sensor before placing your order.
You can check which type of sensor you need here
If your unit has a pressure sensor, it will need to be returned ONCE to be calibrated and change of parts to fit the non-pressure sensor. You can book your unit in for calibration on https://andatech.com.au/pages/breathalyser-calibration