Mine are setup as generic and I am not sure what additional benefits a different device type will provide since both options of battery and contact are actually being displayed…
Yes these can be modded to work as moisture sensors:
[more info here][1]
[1]: Made a Water Leak Sensor
But frankly I would wait for the PEQ ones to go back on sale at 20$ or buy them from Amazon for 25$ and be done with it! If you have a unique mounting situation and can make use of the flexible contacts on the monoprice ones then go that route…