Hope you folks enjoy. I use Optex sensors myself, and I wanted to start sharing them with others. I have more Optex sensors that I will be reviewing soon.
The BX-80 detects from both sides where the fitlink is one sided detection with an upper and lower zone. The fitlink is designed to be placed at the end of a wall more or less instead of in the middle like the BX-80. Very easy to setup and user friendly.
Pricewise, the BX looks to cover more area, but then again you need to add the receiver. If you have the opportunity to test both sensors in terms of performance, that will be great. Good video!