Review on Aprilaire 🌡️ 56 Humidity Controller by Elizabeth French

Our control unit has had a malfunction for several years - we just didn't notice it. The new block was easy to install: I moved the wires one by one and moved them from the old to the same spot in the new block. The instructions explained how to test the humidity sensor quickly and easily - the sensor worked perfectly and replacing it did not require unnecessary effort. The new device works great and we can both feel and see the difference on our windows - almost every window has no more condensation! For your health!