You are using a version of Internet Explorer (version 8 and / or older) or the compatibility mode, which does not support some functionalities of the site you're viewing. This page can be displayed correctly you therefore may not. In order to use the full functionality of the site is a current Internet Explorer or another browser (eg: Google Chrome, Firefox) necessary.

Portable turbidity meter Turb® 355

WTW portable turbidity meter Turb® 355 in the case set

Small portable turbidity meter as per DIN ISO / US EPA for nephelometric measurements in quality control and environmental monitoring

  • Handy and easy operation
  • Low weight
  • Smaller sample volume

Battery-operated portable turbidity meter with infrared LED for nephelometric measurements as per ISO 7027/DIN EN 27027 (EN ISO 7027) or as a white light model with tungsten lamp as per US EPA.

It is handy, light and simple to operate and is suitable, primarily for applications to monitor > 1 NTU. With smaller samples of 15 ml, it is also very suited for applications in fermenters and cell cultures at good precision.

Turb® 355 IR/T is supplied as a set in a handy small case with quick instructions, calibration standards 0.02 – 10.0 and 1000 NTU, empty cuvettes and batteries.


Model Description Order no.
Turb® 355 IR Turbidity meter case set IR as per DIN ISO with turbidity standards 0.02-10-1000 NTU 600311
Turb® 355 T Turbidity meter case set T/white light as per US EPA 180.1 with turbidity standards 0.02-10-1000 NTU 600312

Technical Data

Measuring ranges NTU 0 … 1100
FNU 0 … 1100
Resolution 0.01 NTU in the range 1 … 9.99
0.1 NTU in the range 10,0 ... 99,9
1 NTU in the range 100 ... 1000
Accuracy 0 - 500 NTU/FNU: ± 0.1 NTU/FNU or ± 2% of measured value
500 - 1100 NTU/FNU: ± 3% of the measured value
Reproducibility 0.05 NTU or ± 1% of the measured value
Cuvette size 25x45 mm, 15 ml sample volume
Power supply 4 x AAA batteries for approx. 1500 measurements

Matching and supplemental products


Model Description Order no.
Cal.Kit P Turb® 355 IR/T Calibration set for Turb® 355 IR/T (0.02-10.0-1000 NTU) incl. marking rings 600547
Cal.Kit P Turb® 350 IR Calibration set for Turb® 350 IR (0.02-10.0-1000 NTU) incl. marking rings 600541
Cell Turb® 350 / Set Empty cuvettes for Turb® 350/355 600606


Are you interested
in signing up for the free
WTW newsletter?

WTW Newsletter Registration

Any Question?
We advise
you gladly!

WTW Contact