Resolution NanoMax

Any suggestions how to get the Resolution NanoMax door sensor to work on my back door using Qolsys alarm? Probably works about 20% of the time. I have deleted and re-added with same results. Thanks.

When you say works 20% of the time, do you mean it only reports open roughly that often?

Can you take a photo of the sensor as it is currently installed and attach?

Is your back door a metal one by chance?

It is metal, at least partially.

Correct, only reports approx 20% of the time.

Also, I have had 2gig, Interlogix sensors on those doors with never an issue.

If you remove the sensor from the door and hold it within a couple inches of where it was mounted and use the magnet to open and close the switch, does it act the same way?