Difference between pressure or non-pressure sensor

There is no difference in function or accuracy. The only difference is the type of sensor to replace to calibrate the unit.

Pressure - with red, black and white wires.

Non-pressure - without wires.

The non-pressure sensor wont work in the unit that requires a pressure sensor, and vice versa. You will have  to remove the sensor (the rectangular board you'll first see) to see this. 

zzzzzen

 Please check the image below before purchasing. Should you still remain unsure which sensor you own, take a picture and e-mail it to us at support@andatech.com.au
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. This will cost $60 ( inclusive of calibration cost + shipping charges)
 
vs