Airflow iCON Low Voltage Fan, Motion Sensor & Humidistat - iCON 15S SELV-eco72574201-PRHTS Cover Colour Option:Silver a three way position switch

a three way position switch should be used to achieve this

humidity with timer and motion sensor with timer

The iCON eco 30 HTS has adjustable humidity control between 40% - 90% RH

So if you have a S90T then this fan is its direct replacement and it will fit in the same space as your existing product and ducting

we have not ignored the process of commissioning the fan

Airflow iCON Low Voltage Fan, Motion Sensor & Humidistat - iCON 15S SELV-eco72574201-PRHTS Cover Colour Option:Silver a three way position switchiCON 15 is ideal for toilets, en suites, and small bathrooms. The circular design means no squaring up is required, adding to the already simple installation procedure and the iris shutter design makes switching on and off almost silent and helps reduce external noise ingress. The iCON 15 PRHTS has PIR motion sensor with adjustable humidity setting and adjustable run on timer Low voltage (100 240v AC transormer to 12v DC) designed to operate with