Seametrics Turbo Sensor 0-3,000 NTU with Datalogging

Seametrics Turbo Sensor 0-3,000 NTU with Datalogging measures a wide range of NTUs, making it a versatile device capable of deployment at many different sites. This device also comes with a built-in data logger and Aqua4Plus software. With both features standard, the Turbidity Sensor is perfect for the environmental professional who’s frequently on the move.

Seametrics Turbo Sensor Features

  • Measures and records turbidity and temperature
  • 260,000+ record non-volatile memory — no data loss in the event of a power failure
  • Free, easy-to-use software
  • Replaceable wiper blade
  • Modbus® and SDI-12 interfaces for greater flexibility
  • Built-in data logger holds records in non-volatile memory
  • RS485 network
  • Wireless connectivity
  • Flexible, Windows®-based programming
  • Real-time viewing of data
  • Easy export to spreadsheets and databases
  • Direct read option for use with panel meters or RTU/PLC applications
  • Available with a variety of cable options—including polyethylene, polyurethane, and FEP
  • Range: 0-3,000 NTU
  • Resolution: ±3 NTU
  • Accuracy: 2% at 25° C

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Seametrics Turbo Sensor Applications

  • Groundwater monitoring
  • Agricultural runoff studies
  • Discharge monitoring
  • Aquaculture
  • Leachate monitoring
  • Remediation performance
  • Wastewater treatment
  • Monitoring streams and rivers
  • Monitoring water storage bodies, including stratification studies
  • Intermediate and final effluent treatment monitoring
  • Hydrological run-off studiesGround and bore water analysis


Length 15.882” (40.34 cm) w/ cable harness
16.525” (41.97 cm)
Probe Diameter 1.29” (3.3 cm)
Probe Material Composite
Wire Seal Material Fluoropolymer and PTFE
Submersible Cable Polyurethane, polyethylene,
or ETFE available
Terminating Connector Available
Communication RS485 Modbus® RTU
SDI-12 (ver 1.3)
Direct Modbus 32-bit IEEE floating-point
Read Output
Internal Math 32-bit floating-point
Operating Temp. Range 0° C to 40° C
Storage Temp. Range -20° C to 50° C
Memory 260,000+ records
Log Types Variable, user-defined, logarithmic,
Programmable 9600, 19200, 38400
Baud Rate
Logging Rate 2x/sec maximum
Software Complimentary Aqua4Plus
Networking 32 available addresses per junction
w/ batching capabilities (up to 255)
File Formats .csv / .a4d
External Power 12 Vdc nominal (9–15 Vdc)
Pack Required
Measuring Ranges 0–400 NTU
0–3000 NTU
Measuring Method 90 degree ISO 7027
Accuracy ± 2% or ± 2 NTU @ 25°C
(whichever is greater)
Repeatability ± 2% @ 25° C
Temperature Range 0° C to 40° C
Maximum Depth 164 ft (50 m)

NOTE: Specification can changes,

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