For use where Secchi disc readings are not feasible.
Turbidity is measured by direct comparison of sample water to turbidity standards selected to match formazin standards. Also allows you to accurately test for dissolved oxygen, temperature, pH, and turbidity. Measures dissolved oxygen from 0 to 10 ppm; readable to 0.1 ppm. Thermometer measures temperature from -5 °C to +45 °C in 0.5 °C increments. Two octet comparators are used to measure pH from 3.0 to 10.5 in 0.5 increments.