Dwyer Instruments Series WD3 Water Leak Detector

The Series WD3 Water Leak Detector, from Dwyer Instruments, protects equipment from water damage by detecting the presence of water in drip pans in air handler units; under raised floors in data centres; or on floors around sump pumps and drains. 

Water is detected once it reaches a level that bridges the two conductive strips on the bottom of the housing. Depending on the model, audible and/or visual alerts provide local indication of the alarm condition and an internal switch will give remote indication or control to prevent further build-up of water. 

For applications where power is not available, the Model WD3-BP-D1-A is battery powered using a coin-cell 3 V lithium battery. Otherwise, either AC or DC supply voltages can be used to power the water detector. The sensing height can be adjusted to as low as 1/32″ using the adjustable mounting bracket.