Quest DEH 3000R remote wall mounted digital control for Quest ventilating dehumidifiers. Features fan/filter operation and programmable ventilation timer. It has a large easy to read backlit LCD display. The DEH 300R has high temperature cut-out, a dry cycle timer, and auto reboot feature. Works with Quest Dual 105, 155, 185, 205, 225, and 506 (#700819, #700818, #700811, #700821, #700831, #700811, and #700950). If you daisy chain the #700950 units, we recommend only daisy chaining two units at a time when using the 700833 humidistat).