Sensortronic Digital 100mm Axial Fans

For bathroom and toilet application. Features a set-back (night time) and digital humidity display.

Designed for easy installation and attractively styled for discreet integration within the wetroom.

Using the latest fan technology, the Sensortronic Digital continuously displays surrounding humidity levels and features a set-back time function to eliminate unnecessary running.

Suitable for: Bathroom | Toilet

Includes humidity sensor and digital display
Residents have continuous visibility on humidity levels
Features a set-back humidistat control to avoid unnecessary operation
Extracts 90m³/hr at 25l/s or 27l/s
Can be wall, ceiling or window mounted
Low voltage variants available
Manufactured in the UK
2 year warranty

Axial Fans:

Incorporate impellers that force air to move parallel to the shaft about which the impellers rotate. Axial fans are suited to short duct runs which connect directly to an external outlet or grille.

Model Description
D400HS 100mm | Humidity sensor | Pull cord
D400HT 100mm | Humidity sensor | Timer
D400LVHS 100mm | Humidity sensor | Pull cord | Low voltage (SELV 12V)
D400LVHT 100mm | Humidity sensor | Timer | Low voltage (SELV - 12V)
Max Extract (m³/h) Max Extract (l/s) Supply Voltage (V) Max Wattage (W) Noise Levels dB/(A) Warranty (Years) Fan Speed (RPM) Colour

Max Pressure (PA)

Max Operating Temp (ºC) IP Rating
90 25/27


12 (SELV)

20 40 2 2400 White 50 Yes X4


Unit Dimensions
F 166
G 166
H 100
J 42
K 42
Wall / Ceiling Hole 107mm
Window 126mm




These fans are double insulated and do not require an earth. All wiring must comply with current IEE regulations. A double pole isolating switch, having a contact separation of at least 3mm in all poles, must be used with a 3 amp fuse fitted and mounted a minimum of 1.75 metres from the floor and less than 400mm from the ceiling.

Do not install the fan above a heat source. e.g. radiator


Single phase induction motor with pre-oiled bearings fitted for a long maintenance free life and protected by a thermal fuse.


The 230V (A.C. 50Hz Single phase consuming 20 Watts) and 12V fans are designed to be wall, window or ceiling mounted. Kits available on request.

Wall kits comprise a wall sleeve (275mm long) and a gravity grille (white, terracotta, stone, grey or brown).

Window kits comprise an external white fixed grille and internal fixing plate.

Ceiling kits comprise 3m of 100mm flexible ducting and an external fixed grille (colours to suit).

When installing through a wall a 107mm hole is required, 126mm through a window.