The RLS offers a large measurement range with a small blanking distance and narrow beam width. The sensor is easily connected to most any data logger via standardized communication interfaces. The RLS has extremely low power consumption and is ideal for remote or solar powered sites.

• Accurate: ±0.01 ft accuracy for water level measurements, and will not drift over time
• Fast: water level measurements available every 20 seconds
• Performance: unaffected by air temperature, wave action, humidity, flood events, floating debris, or contaminated water
• Low power consumption: Impulse radar technology requires only 12 mA @ 12V
• Installation: mounts to slanted surfaces
• Light weight: weighs less than 5 pounds

Performance Features

• Quick response time: 20 seconds
• Measurements are unaffected by:
  • Air temperature
  • Wave action
  • Humidity
  • Flood events
  • Floating debris
  • Contaminated water
• Low power consumption during measurement and stand-by
• Low maintenance
• Compact housing with flat antenna design

• Versatile installation, easily mounted to a bridge, frame, pipeline, or extension arm
• Simple mounting on slanted surfaces
• Ideal for monitoring remote and hard to reach locations

• Impulses are transmitted by the RLS’s transmitting antenna, then reflected off the water’s surface and received by the RLS’s receiving antenna
• Approximately 16 individual measurements are conducted per second and averaged after 20 seconds to minimize influences of waves
• The time delay from transmission to receipt of the reflected impulse is used to calculate distance from the RLS to the water surface

• Measuring Range: 2.6 - 115 ft. (0.8 - 35 m)
• Accuracy:
  • 2.6 to 6.6 ft.: +/-0.03 ft.
  • 6.6 to 98.4 ft.: +/-0.01 ft.
  • 98.4 to 115 ft.: +/- 0.03 ft.
• Resolution: 0.01 ft. (0.001 m) SDI-12 Interface
• Outputs: SDI-12, RS-485, 4-20 mA