Turbidity Meter

The TB-25A Portable turbidity meter can be a field operated Instrument for measuring Turbidity and temperature in all types of water environments such as rivers, lakes, dams and water supply areas used for agriculture, waste water and sea water. The unit is capable of measuring turbidity at depths of up to 100 meters. The LCD display shows all appropriate parameters and an easy to follow calibration procedure. ISO 14001 compliant.


  • Direct Sample Measurement
  • Simple calibration with one touch.
  • Moisture proof unit
  • Turbidity as NTU (formazine) or mg/l (Kaolin) using 90 degree light scattering method
  • Rugged compact sensor with standard 2 meter cable.
  • Slim Design Sensor (30mm) with ability to measure at depths of 100 meters.
  • Data Memory for 100 samples.
  • Coefficient compensation function for data.
  • 100 hours of use time with batteries
Turbidity Meter
Turbidity Meter


Measuring Method 90 Degree light Scattering Method
Indication LCD Display
Range: Turbidity: 0 to 800 NTU, 0 to 800mg/L
Temperature: 0 to 50 degrees C.
Resolution Turbidity: 1 NTU, 1 mg/L
Temperature: 0.1 C
Repeatabiltiy Turbidity: +/- 1% r.d.g, +/- 5 NTU (formazine)
Temperature +/- 0.3 C
Analog Output (Factory Opt.) Turbidity: 0 to 800 mV F.S.
Temperature: 0 to 1V F.S. (Simultaneous)
Power Source 6x "C" cells or AC adapter (option)
Dimensions / weight Main Body: 250mm(W) x 160(H) x 95(D)
Approx.: 2.3 Kgs
Sensor: 30(diam) x 240mm(L)
Approx. 400g

Pricing Information for TB-25A

TB-25A Portable Turbidity Meter
Portable meter with digital LCD display which measures Turbidity and temperature. Unit comes complete with sensor (2m cable), shoulder belt, manual and batteries.

Accessories and Consumables for TB-25A

TMS-25A Sensor with 2m cable. ( TMS25A02, Standard with main unit)
TMS-25A10 Sensor with 10m cable
TMS-25A30 Sensor with 30m cable
TMS-25A100 Sensor with 100m cable
DO-SB Shoulder belt.
YD-12 AC adapter. (230VAC or 115AC, Specify)

Options for TB-25A*

TB-ANALOG Analog output, Simultaneous
Continuous temperature output and turbidity output. (Factory Option).

*Note: All options must be specified when ordering TB-25A.