Difference between WL4200 and WL4200S detectors

The WL4200 water leak detector can be placed on the ground, near risky areas, and must not be submerged in water.

The WL4200S water leak detector can be fixed on the wall or ground to prevent it from being moved. In addition, thanks to its 4 ft sensor, it can reach hard-to-reach places such as under the washing machine or dishwasher, and its sensor can also be submerged in water.