Does the job
Works as advertised; ours is setup with both the chair pad and bed pad.  Our unit would not sync up out of the box.  We had to call the seller, who walked us through breaking the seal and resetting the transmitter in the pad, which cured the problem.  Everything is working now.  The alarm is loud; louder than many will want, even on low.  As others have noted, the lack of an easy reset button is annoying, but one can live with it.
Rating: 4 stars