The energy efficiency of heat recovery ventilation systems (HRV) is increasing, yet air exchange in the home costs energy. Sensors and switches are needed to provide an optimum balance between occupant demand and installation efficiency. The new wireless sensors, combined with a Flair HRV unit, now allow you to maintain excellent air in your home automatically. No matter if you are sitting on the couch at home, receiving visitors, taking a shower or spending time away from home, the ventilation setting is automatically adjusted to the current situation. This way you never ventilate too little or too much. This means ample fresh air at all times at the highest energy efficiency. Still prefer to take matters into your own hands? With the new wireless switches, you can. And all that with stylish switches and sensors that blend in with every interior.

Carefree ventilation with CO2 control
Excessive CO2 levels may cause concentration problems and headaches. Ventilation rate control based on the CO2 content in habitable rooms (living room and bedrooms) is often referred to as demand-controlled or demand flow ventilation. 
Once the sensor measures a rising CO2 level in a room, the ventilation unit automatically replaces the indoor air with fresh air from outdoors, thus reducing CO2 levels. If the ventilation unit is controlled by one or more CO2 sensors, the air flow rate is based on the highest measured CO2 content.

RH control automatically prevents high humidity
RH means "Relative Humidity" and refers to the relative moisture content in the air. Excessive humidity may cause mould growth. As soon as the RH sensor detects a rapid humidity increase, the ventilation system switches to maximum ventilation mode to carry off the excess moisture. Therefore, an RH sensor is mainly used in humid areas such as the bathroom. When the relative humidity drops again, boost mode is maintained for another 30 minutes and then switches off.

The advantages at a glance

• Simple installation
• Modern design
• Fits all common brands of switchgear
• Switches both battery and mains operated
• Location flexibility
• Battery life at normal use: at least 2 years