The Nuaire Drimaster-Eco 4-way Switch is a wireless, four-button switch that can be installed anywhere in the home using either its adhesive backing or screws (screws not supplied). This four-way switch is available as an optional extra with the DRI-ECO-HEAT-HC and DRI-ECO-NOX-HEAT models of Positive Input Ventilation (PIV) units. This switch, which uses radio frequency (RF), allows the homeowner to control not only the fan's boost function for additional ventilation but also whether the heating element is set to "Auto" or "Off."

The manual control has the advantage of allowing the occupant to manage additional ventilation if needed during times of high demand such as cooking, bathing, or cleaning. (Optional to increase ventilation rates for a set period of time or to return to normal mode after 2 hours.)

The Drimaster-ECO Humidity Sensor (DRI-ECO-RH) and Drimaster-ECO CO2 Sensor work in tandem with the 4-way switch (DRI-ECO-CO2)