• Maintenance-free operation.
• Measurement range options of 15 m or 35 m.
• Near blanking zone of 0.5 m.
• High accuracy with a margin of +/- 2 mm.
• Compact design for easy integration.
• Unaffected by environmental conditions.
• Vandalism-resistant design.

• Dimensions: 153 x 325 x 200 mm.
• Mounting: 2 brackets for pipe diameters of 34 - 48 mm.
• Operating temperature range: -40°C to +80°C.
• Power supply requirement: 9.6 to 36 VDC.
• Measurement frequency: 26 GHz (K-Band).
• Total weight: 3 kg.

• Measurement range: 0 to 15 m or 0 to 35 m.
• Resolution: 1 mm.
• Accuracy: +/- 2 mm.
• Near blanking zone: 0.5 m.
• Holdback time: 60 seconds after power on.
• Step response time: Less than 3 seconds for changes up to 0.5 m.
• Output: 4 to 20 mA corresponding to 0 to 15 m or 0 to 35 m.

The RL-15/35 is a high-accuracy radar sensor designed for contact-free measurement of water levels. It operates by emitting a microwave pulse towards the water surface, which is then reflected back to the sensor's evaluation system. The time taken for the pulse to return is used to calculate the distance to the water surface.

The device uses a radar sensor to determine water levels.

Product information is provided by Sommer GmbH, with technical data subject to change as of version V-05/2015.