Stop lens fogging in HD CCTV systems

Stop lens fogging in HD CCTV systems

No matter how good the CCTV system, lens fogging due to humidity makes the images and the investment useless.  A version of the Rosahl micro dehumidifier has been developed specifically for the new generations of compact high performance CCTV systems Designed for HD CCTV cameras New generations of high definition day/night CCTV cameras offer a step change in performance from models previously available.  They enable operators to zoom in and  clearly identify faces, number pates and suspicious activities. Rosahl micro dehumidifiers use a solid...

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Drying without draining

Most methods of dehumidifying require regular maintenance. Rosahl is different. If you’re in business, lifetime maintenance costs are often more than the cost of the equipment, but if  maintenance intervals are missed then the consequences can be even worse. Rosahl is a small membrane that removes moisture through electrolysis. It needs no maintenance, has a low running cost, is very small and has a long service life. Traditional drying cabinets often use thermal cooling systems designed to condense unwanted moisture and then drain it...

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Dehumidifier for very small applications

At a quarter the size of a standard AA battery, the latest PD3 micro dehumidifier from Rosahl is designed for very small spaces and is easily installed in a fine pitchM12 screw-in mounting (M12 P0.5). ROSAHL is a unique solid state dehumidifier. By applying a low voltage DC supply to its solid polymer electrolyte (SPE) moisture disassociates into hydrogen ions and oxygen and is expelled to the outside of the enclosure. It makes no noise, doesn’t wear out, requires no maintenance, is very small and cheap to run. PD3 is the smallest in a line...

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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 like an ionic pump. When a voltage is applied to the membrane, the moisture on the inside of the enclosure breaks down (dissociates) into hydrogen ions (H+) and oxygen: the hydrogen ions migrate through membrane to be discharged on the outside side where they react with oxygen...

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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 humidity within set...

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