+44 203 286 8189 steve.jones@westside-int.com
Special purpose dehumidifier

Special purpose dehumidifier

Rosahl is a special purpose dehumidifier used by original equipment manufacturers (OEMs) to protect electronics, optics, artefacts and other sensitive items from moisture damage. It uses an ultra compact solid state ionic membrane to actively expel moisture from the...

Easy install micro dehumidifier for small cabinets

Lightweight moulded model Westside International has introduced the RDH-3P1, an easy to install,lightweight moulded version of Rosahl that combines a solid-state micro dehumidifier with a power supply suitable for 85-264 volt applications.  It is designed to be...

Condensation solutions for electronics

Every electrical engineer knows that water and electricity do not mix.  Water can cause short circuits, ground faults, rust and corrosion.  High impedance joints may cause fires and damage electrical and electronic equipment.  Downtime, lost production and repair...

Is RD3 now the World’s smallest dehumidifier?

Widely used to protect cabinets containing museum artifacts; sensitive electrical and electronic equipment, and cameras (including CCTV), the ROSAHL ionic membrane dehumidifier offers a long, maintenance free service life and economical running costs.  The membrane is...

Small space dehumidifier

Designed to protect cabinets containing sensitive electrical and electronic equipment including cameras, the ROSAHL ionic membrane dehumidifier offers a long, maintenance free service life and economical running costs.  The membrane is mounted on the side of the...

Effective low temperature dehumidifier

The Rosahl dehumidifier is designed to work effectively throughout an operating temperature range of below -10C to 50C (14 – 122F). It is not affected by the freezing point of water as it operates at the molecular level.  The memrane at the heart of Rosahl works...

Screw-in micro dehumidifier simplifies installation

Screw-in dehumidifier The Rosahl PD screw-in micro dehumidifier is designed for simpler, faster installation, where the dehumidifying membrane fits inside an M12 moulded (M12 x P0.5 fine-pitch) screw-in fitting and is suitable for enclosures up to two litres (122cu...

Rosahl FAQ’s

If you have a question, try the new FAQ section or use the ‘contact us’ page ROSAHL uses a unique membrane to remove moisture from enclosures through electrolysis.  This gives it a number of benefits over traditional methods of air drying: it is very...

Precise control of humidity.

A ROSAHL dehumidifier removes moisture from an enclosed cabinet through electrolysis when a 3V dc supply is connected.  By fitting a second element and a simple circuit controlled by a humidistat, the same process will also humidify the cabinet and help maintain...

ROSAHL thumbnail size dehumidifiers

When we say the thumbnail sized ROSAHL ionic membrane is the world’s smallest dehumidifier we really mean it’s the world’s smallest electrical low-powered; maintenance free; long-life; vibration-free dehumidifier. The mounting measures 24 x 30 x 5.5...