Check the listing for details. Portable Chlorine & Multi-Parameter Analyzer - Colorimetric DPD - Colorimeter. Condition: New, Made in United States. Listed at 950.00 USD. Allows interchangeability with our LR3 portable tester. TM P/N HR10 Free and Total Chlorine Sensor - Low range 0.02 - 3.00 mg/L (ppm) AND 0.1 - 10.0 mg/L. Unit can be tested with any standard providing a chlorine value within range of the unit.