Here is a list of resources to help you troubleshoot your Zooz ZSE18 Motion Sensor and navigate the documentation that’s already out there 
We try our best to keep the Zooz Support Portal updated and continue adding helpful articles every day so take a look at the most popular docs first, there’s a good chance your question has already been answered! 
ZSE18 FAQ: the best place to start 
Add Your ZSE18 Motion Sensor as Signal Repeater on USB Power
OTA Firmware Update Files: read all of the disclaimers carefully before applying an update to your device to avoid accidental bricking 
ZSE18 Change Log: where we keep track of all the updates made to the hardware and software of the device.
ZSE18 Specs: make sure you use the device with the right power source and keep it under acceptable conditions.
ZSE18 Advanced Settings: learn how to customize your device.
Detailed Support for ZSE18 Motion Sensor & Your Hub: