When you say tabs, do you mean these?
One of the topics I read on this said that the sensors aren't waterproof: Review: ThirdReality Zigbee Water Leak Sensor with 120 dB siren alarm. Does bending the tabs help with that issue? I wonder if the screws can be replaced with longer ones so the housing is off the ground. I'll definitely be on the look out for this for Prime Day.
