TB 211 IR

TB 211 IR

A compact instrument for reliable and easy determination of turbidity. A ring memory with 125 data sets and a USB interface guarantee an efficient data management.


  • USB interface
  • Range 0.01 – 1100 NTU
  • Measurement according to EN ISO 7027
  • Measurement with infrared light at an angle of 90°


The compact Lovibond® infrared turbidity measuring instrument TB 211 IR for fast and accurate on-site analysis. It is measured as provided in EN ISO 7027, the scattered light at an angle of 90 °.
The wide measuring range from 0.01 to 1100 TE / F = NTU = FNU with a detection limit of 0.01 NTU allows the use of the device in different areas, from drinking water to wastewater.
Since the measurements are made by means of infrared light, both colored and colorless water samples can be measured. A direct transfer of the measurement results to a PC is through the USB interface TB 211 IR easy to set up. The necessary USB cable is already part of the delivery.


Optics temperaturecompensated LED ( λ = 860 nm) and photosensor amplifier in water proof sample chamber, infrared light
Measuring Principle nephelometric (90° scattered light)
Measuring Range 0,01-1100 NTU (Autorange)
Accuracy ± 2.5 % of reading, or ± 0.01 NTU, whichever is bigger, in the range of 0.01 - 500 NTU ; ± 5 % of reading in the range of 500 - 1000 NTU
Display backlit LCD
Interfaces Micro-USB
Operation polycarbonate membrane, splash proof
Auto – OFF Yes
Internal Storage internal ring memory for 125 data sets
Power Supply 9 V-block
Clock Real Time Clock and Date
Portability Portable
Environmental Conditions 5 - 40 °C at 30 - 90 % relative humidity (non condensing)
Compliance CE
Dimensions 110 x 55 x 190 mm
Weight 400 g (Basic unit)
Weight with Packaging (Basic unit)
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