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Designed to deliver time and time again in even the harshest conditions, the TruBlue 555 LEVEL is battery powered and made with 316 stainless steel or titanium.  A fully sealed design and advanced, power-conserving microcomputer technology enables it to log level (depth) and temperature for up to five years. Since these units do not require onsite power or a programmable logic controller (PLC), a terminal box isn’t necessary. The TruBlue 555 LEVEL is the perfect choice when reliability, accuracy and precision matter. 


  • Level Accuracy of ±0.05% FS TEB
  • Five year permanent battery
  • 8 MB internal memory for up to 550,000 data points
  • New free user-friendly TruWare software for PC or Mobile included 
  • Two Year Warranty
  • Calibration Report included with each instrument 
  • Easier set-up and data retrieval
  • Displays real-time instrument status and data graphs
  • RS-485 or SDI-12 communication interface


  • Aquifer Characterization and Pump Tests
  • Remediation
  • Flood and Storm Surge, Stormwater
  • Tide Gauging
  • Wetlands Monitoring
  • River and Stream Monitoring  

Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Sensor Type  Water Level Data Logger

  • Type  Absolute, Gage

Electrical Characteristics

  • Output/Span  RS-485 with SDI-12 Protocol, SDI-12

  • Supply Voltage (V) 3.6 Internal Lithium Battery

  • Electrical Connection  Internal Battery

Body Features

  • Port Material  316 SS, Titanium

Mechanical Attachment

  • Pressure Port/Fitting  Ported


  • Pressure Range  0 – 5 to 300 psi

  • Accuracy  ± .05% TEB

  • Operating Temperature 0 – 50 °C [ 32 – 122 °F ]

  • Overpressure  3X FS (600 psi Max)


  • Options  Extended Auxillary Battery

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