Interesting. One of the reviews mention the screws on the bottom are the sensor contacts, and they are recessed. I would think getting the version with the dripping attachment (for $1 more) would help. Do you have that?
EDIT: I just read the whole review thread, and I see the recessed contacts is mentioned a bit: Review: ThirdReality Zigbee Water Leak Sensor with 120 dB siren alarm
https://www.amazon.com/THIRDREALITY-Solutions-Available-Individual-Included/dp/B09GYFN8VL
