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CS476 Radar Water level Sensor

Campbell Scientific

The CS476 is a radar-ranging sensor that monitors water level of rivers, lakes, tidal seas, and reservoirs. It can measure distances up to 30 meters. The CS476 outputs a digital SDI-12 signal to indicate distance and stage. This output can be read by many of our dataloggers. The CS476 emits short microwave pulses and then measures the elapsed time between the emission and return of the pulses. The elapsed time measurement is used to calculate the distance between the sensor and the target (e.g., water, grain, slurry). The distance value can then be used to determine depth.

Sales enquiry

  • FCC approved for outdoor use (FCC IC number M01PULS616263)

  • Measurement Range: 50 mm to 30 m 

    (2 in. to 98 ft)

  • Accuracy: ±3 mm (±0.1 in.) over entire measurement range

  • Resolution: 1 mm (0.04 in.)

  • Output Protocol: SDI-12

  • Radar Frequency: ~26 GHz

  • Electromagnetic Compatibility: Emission to EN 61326; Electrical Equipment Class B

  • Pulse Energy: 1 mW maximum

  • Beam Angle: 8°

  • Input Voltage: 9.6 to 16 Vdc

  • Surge Protection: 1.5 KVA

  • Temperature Sensitivity:

    average TK: 2 mm/10 K, maximum 5 mm over the entire temperature range of -40° to +80°C

Benefits and Features
  • Ideal for areas where submersed sensors can be damaged due to corrosion, contamination, flood-related debris, lightning, or vandalism

  • FCC approved for outdoor use (FCC ID number MOIPULS616263)

  • Compatible with most Campbell Scientific data loggers

  • Low maintenance—no moving parts significantly reduces maintenance cost and time

  • Low power consumption

  • Rugged enough for harsh environments—NEMA rated 4X

  • Individual FCC license not required

  • Wide operating temperature range (-40° to +80°C)