I've got the equivalent Aqara model. They link up to HE. The drivers are community provided (they are not built in). Available drivers are both for Aqara and Xiaomi motion sensors.
The price depends from the delivery costs. I've got a bunch of them for 11 euros each all included.(be careful, the 6.xx usd dollars price is related to the stand only…)
The zigbee backhaul must also be Xiaomi compatible (e.g. Ikea repeaters). Generally no bulbs repeater are compatible.
