Apera Instruments TN500 Portable White Light Turbidity Meter with Data Logger, EPA 180.1 Compliant

Tungsten filament lamp light source and 90° scattering method, compliant with the U. S EPA 180. 1 method Comes with AMCO high-molecular polymer turbidity standard solutions, which are EPA approved primary standards that are safe, non-toxic and disposable, and have a one-year shelf life. TruRead measurement mode automatically takes multiple consecutive readings, and calculate their average, minimum and maximum value, as well as displaying each set of data in a brief test report. Zero NTU calibration and zero-point error reminder to ensure high accuracy for low-turbidity solutions.