eMylo WiFi Smart Motion Sensor, PIR Motion Detector, Infrared Sensor with APP Real-time Push, 128° Detection Range, USB & Battery Dual Power Supply, Compatible with Smart Devices for Smart Linkage

This wifi motion sensor is great. With it, I can freely go use the restroom in my store and know instantly if I have a customer walk through the door. It's good quality, easy to install, and notifies me fast. Can turn it off from your phone and has a long battery life. Worth purchasing.

Bought a second unit based on the performance of the first one. Unfortunately, I didn’t realize until after the return window that the second one only works occasionally.In my situation I’m using them to turn on the lights in the garage with the sensors mounted in opposite corners. The garage lights were already controlled by a smart switch schedule so the lights were on when it was time to go to work (and turn off at midnight, in case we forgot to turn them off). All of the bulbs in the house are LED so a few lights burning all day in an empty garage was not a cost concern, but thought a motion sensor might be better.The one mounted above the door from the house works well, although occasionally it sees things that aren’t there, turning on the lights when the garage is not occupied. The sensor in the far corner mounted above the workbench sometimes can’t see you when you are standing in front of it, 2 feet away.If you buy this, be sure to test it during the grace period so you can exchange or return it if you are not happy.Works with Alexa and Tuya/Smart Life.These have the option to be battery powered or usb.

This sensor works with the decent Tuya Smart / Smart Life apps. I'm expecting it will also integrate with the Home Assistant tuya-local add-on, although I haven't tried it yet. It's nice that the sensor can be powered by AA batteries, which should last a long time, as well as micro-usb... although the directions are a bit confusing seeming to suggest the micro-usb cable can be used to charge the batteries (note that the batteries it comes with are NOT rechargeable).