YN90-4G：

Power charge via solarpanel
Power stock via built in 18650 Li-ion Battery
No need wiring,no need punching,100% wireless
Plug&play,simple operation,easy installation
3 main strong tech:Microwave motion detection+Build in smart power management+built in
Microwave motion detection technology:Actively detection in 0.6S,Fast, longer and wider range detection,Not affected by environment,temperature and reflect light.
CAM available for any areas ineed cctvbut without power and ethernet.

YN90-WIFI：

Power charge via solarpanel
Power stock via built in 18650 Li-ion Battery
No need wiring,no need punching,100% wireless
Plug&play,simple operation,easy installation
3 main strong tech:Microwave motion detection+Build in smart power management+built in decode.
Microwave motion detection technology:Actively detection in 0.6S,Fast,longer and wider range detection,Not affected by environment,temperature and reflect light.
CAM available for any areas ineed cctv but without power and ethernet.