The compact Lovibond^® Turbidity Meter TB 211 IR is an infrared turbidity measuring instrument that provides fast and accurate on-site analysis. Measurements are conducted according to EN ISO 7027 standards, using scattered light detected at a 90° angle. This compact instrument enables reliable and easy determination of turbidity, featuring a ring memory with 125 data sets and a USB interface for efficient data management.

With a wide measuring range from 0.01 to 1100 NTU and a detection limit of 0.01 NTU, the TB 211 IR is suitable for various applications, from drinking water to wastewater analysis.

Because measurements are conducted using infrared light, both coloured and colourless water samples can be analysed accurately. Measurement results can be directly transferred to a PC via the USB interface, making data transfer straightforward. The necessary USB cable is included with the device.

Delivery Content

Instrument in carrying case
4 turbidity standards (< 0.1, 20, 200 and 800 NTU)
9 V battery
2 vials (ø 24 mm) with lids
USB cable 1.5 m
Warranty information
Certificate of Compliance
Instruction Manual

Optics	Temperature-compensated LED (λ = 860 nm) and photosensor amplifier in waterproof 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)