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H-3342 Shaft Encoder

Designed specifically for measuring water level in a stilling well, the Shaft Encoders (H-3342) sturdy design incorporates the use a float and pulley to produce accurate data within minutes of installation. Now, with the use of magnetic sensors, the WaterLOG Shaft Encoder features minimize static sensitivity for enhanced performance. You'll enjoy the easy to read, ultra low power, built-in LDC display allowing you to view the last measured value at any time. And this series is compatible with most data loggers, to allow easy installation.


  • Non-contact optical encoder preserves correct position even if the power is lost
  • 65,536 counts per revolution
  • Accuracy is 0.00024 ft. (.0073152 cm) 1 ft. (.3048 m) diameter pulley
  • Max turns =±32,768
  • Zero backlash
  • SDI-12 and 4-20 mA output


  • Connectivity / Communications SDI-12: High: 3.5 volts (Min), Low: 0.8 volts (max); 4-20mA (optically isolated), Loop voltage: 8.0V min, 35V max, Resolution: 4µA (12-bit DAC)
  • Graphic Display Yes 
  • Operating Temperature -40 ° to +60 ° C
  • Power Power Requirements: Voltage Input 9.6 to 16.0 volts DC; Current: Standby:150µA typical
  • Storage Temperature -50 ° to +70 °
  • Warranty 2 years 


Ordering information 


H-3342-HP (high power mode)