Measures chlorine residuals as low as 1 part per billion.
Switch selects measurement range: Standard down to 0.1 ppm or low range down to 1 ppb (part per billion.
Measures free, combined, and total chlorine residuals as well as potassium permanganate and chloorine dioxide residuals.
A highly sensitive meter and an adjustable potentiometer make the end point easy to read.
Measures free residuals as well as the mono- and di-chloramine fractions of combined resiudals in the same sample in accordance with Standard Methods.
Measures sulfur dioxide residuals in dechlorination systems.
Ideal for wastewater as sensitivity is not affected by suspended matter or water color.