I am a systems integrator and give tech support to people trying to understand their various integrated low-voltage, home-automation, security, camera, and fire systems. I have followed the directions carefully. They are lacking in detail %26 clarity, in my opinion. I've spent several hours trying to make the unit function completely. I managed to get one probe working finally, but not the other. I tried getting more detailed info from their website, to no avail. Out of fairness, I am going to call their support number today and see if someone can walk me through what I am missing, but the application and user app is so clumsy, I suspect I will return it and spend more money maybe for something more user-friendly.