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Where are electric micro-dehumidifiers used?

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Rosahl micro dehumidifier

Rosahl is a unique electric micro dehumidifier for enclosures from one litre up to 4m³

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Protecting photonics

Rosahl dehumidifiers avert expensive failures of sensitive electronic and electro-optic devices due to humidity and condensation.
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Protect valuables

Micro dehumidifiers protect valuable items and priceless artifacts from damage by moisture and condensation.
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Protect remote equipment

Providing moisture protection for equipment that is difficult to service, micro dehumidifiers operate for years without maintenance.
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Protect investment

Micro dehumidifiers offer improved reliability of high cost capital equipment operating in hostile conditions.

Benefits of Rosahl dehumidifiers


Equipment failure due to moisture has major cost implications for OEMS, machine builders and end-users, but is simple to avoid.

Rosahl solid-state electric dehumidifiers also protect sensitive electronic and optical equipment from long-term moisture damage.

From by a leading global manufacturer, Rosahl uses a compact solid polymer electrolyte (SPE) membrane for long-term maintenance-free drying.



Waterless process
No noise or vibration
Ultra compact
Maintenance free
Small energy footprint
Operates from -20°C to +50°C
For enclosures 250ml to 8m³

Latest products 

In late 2023 we added two new micro-dehumidifiers to the compact series and one to the M Series. Available in two forms, the RS models are suitable for use in enclosures up to 5 litres. The RS1 uses soldered terminals and the RS2 uses push connectors. Dimensions 21 x 28 x 13.5mm

The M-1J1R extends the M Series range down to 125 litres. Larger models are available for enclosures up to 4m³. Dimensions 52.5 x 50 x 16.5mm

Solid state dehumidifier

Fit and forget

Low energy footprint

Long operating life

RS1 dehumidifier


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