I must also add, in all honesty, that even with Ikea Tradfri Repeaters, you have to make sure that other types of devices are NOT showing up as repeaters. That will kill your Aqara devices.
(There is somewhere in this forum a technical note from the master @veeceeoh as to why these Aqara devices act as crazy as they do.)
I'm looking forward to the forthcoming release of the Zigbee 3.0 version of these sensors. Then, I'll have my cake (cheap functional sensors), and be able to eat it too! (reliable and dependable).