The Ultra High Range Chlorine Photometer combines accuracy and ease-of-use with an ergonomic, portable design. Users can accurately determine the concentration of chlorine over two ranges (0.00 to 5.00 ppm free chlorine low range, and up to 500 ppm high range). The Ultra High Range Chlorine Photometer offers many advanced features including the exclusive CAL Check™ function used for performance verification and calibration of the meter.


The Ultra High Range Chlorine Photometer is a portable solution, perfect for measuring chlorine over a very wide range. Most chlorine photometers are limited to very low concentrations of chlorine and require users to dilute the sample to measure a concentration outside the measurement range. This photometer has a unique chemistry that allows for the measurement of samples with chlorine concentrations up to 500 ppm without having to perform a dilution. The Ultra High Range Chlorine Photometer features an advanced optical system; the combination of a special tungsten lamp, a narrow band interference filter, and silicon photodetector ensure accurate photometric readings every time. The exclusive CAL Check™ feature utilizes ready-made, NIST traceable standards to verify both meter validation and calibration. The exclusive cuvette locking system ensures that the cuvette is inserted into the measurement cell in the same position every time to maintain a consistent path length.



  • CAL Check allows for performance verification and calibration of the meter using a CAL Check NIST traceable secondary standard
  • GLP records the date of the last user calibration performed
  • Built in timer guarantees the appropriate reaction time is used for the chemical reaction, providing consistency across multiple users
  • Indexing indent on meter to ensure that the cuvette is indexed consistently (same position) in order to maintain the same path length for accurate results
  • Cooling lamp indicator that is displayed for a short period of time before each measurement to allow the components to cool and obtain the highest accuracy possible
  • Error messages alerting the user to problems including no cap, over range and under range readings, and light source errors
  • Battery status indicator
  • Units of measure is displayed along with reading



  • HI 96771 Photometer
  • Sample cuvettes with caps (2) 
  • CAL CHECK™ standard cuvettes (2)
  • 9V battery
  • Scissors
  • Cloth for wiping cuvettes
  • Instrument quality certificate
  • Instruction manual 
  • Carrying case


*Reagents are not included (HI 93701-01 & HI 95771-01, 100 tests)

Ultra High Range Chlorine Photometer

SKU: HI96771C
  • Range: LR: 0.00 to 5.00 ppm; UHR: 0 to 500 ppm
  • Resolution: LR: 1 ppm (0.10 ppm above 3.50 ppm); UHR: 1 ppm (10 ppm above 200 ppm)
  • Precision LR: ±0.02 ppm @ 1.00 ppm; UHR: ±2 ppm @ 100 ppm
  • Light Source: Tungsten lamp
  • Light Detector: Silicon photocell with narrow band interference filter @ 525nm
  • Power Supply: (1) 9V battery
  • Auto-off: After 10 minutes of non-use in measurement mode; After 1 hour of non-use in calibration mode; with last reading reminder.
  • Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing

28 Vaughan Road

Welland, ON, L3B 5Y1

Mon-Thurs 9-5, Fri 9-4:30

Closed Sat & Sun

© 2019 Water Concepts

P: 905-788-1784

F: 905-788-3456

*Phone is regularly monitored after-hours