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Posted: Tuesday 4th December 2007

OTT HYDROMETRY is launching a new Radar water Level Sensor (RLS) to replace the ‘Kalesto’ radar sensor which has enjoyed world-wide popularity for many years.

Radar sensors are ideal for contact-free water & liquid level monitoring in difficult to measure and remote locations or those which are subject to flooding. However, OTT Hydrometry Managing Director Simon Wills says, “The RLS offers a number of extremely attractive features which will make it suitable for an even wider variety of circumstances. For example, it employs pulse radar rather than a frequency modulated wave, which means that high levels of accuracy are still possible but crucially, power consumption is just 2% of its predecessor that means the systems have the ability to operate from solar or wind powered battery systems in almost any location.”

New features of the RLS also include a wider measurement range up to 35 metres with +/- 1cm accuracy across the entire range; more communication options (RS232, RS484, SDI12, or 4-20 mA); at 2.2 Kg the RLS is smaller and lighter than its predecessor and a new ergonomic design makes it easy to install and lighter to handle.

Simon believes that customers will love the new radar sensor, adding, “There will be no need for users to get their hands wet. The RLS is conveniently sited well above the water - monitoring has shifted up a gear with this new technology. The Kalesto was very popular with customers but we are moving into a new era and the RLS is a great improvement over its predecessor at all levels from range of measurement to cost of ownership.

To contact OTT visit

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