HI97771 Free &Total Chlorine Portable Photometer (Ultra High Range)

(No reviews yet) Write a Review

Frequently Bought Together

Please choose options for all selected products

  • Choose Options

HI97771 Free and Total (Ultra High Range) Chlorine Photometer is a dependable photometer that measures free chlorine in water samples from 0.00 to 5.00 mg/L (ppm) and total chlorine from 0 to 500 mg/L (ppm).

This chlorine photometer combines accuracy and ease of use in a simple, portable design. The advanced optical system provides lab-quality accuracy while its user-friendly design is easy for any user making it the perfect photometer for your water quality testing needs. The HI97771 meter measures free chlorine in water samples from 0.00 to 5.00 mg/L (ppm) and total chlorine from 0 to 500 mg/L (ppm). There is no warm up time needed before taking a measurement and the instrument includes a tutorial mode for easy step-by-step instructions. 


  • Auto-off after 15 minutes of inactivity
  • Logging 50 readings (auto logging)
  • Designed to withstand the knocks, drops, and spills of real life
  • Exclusive positive‑locking system to ensure that the cuvettes are placed into the holder in the same position for accurate readings every time


  • Chlorine, Free UHR Range: 0.00 to 5.00 mg/L (ppm)
  • Chlorine, Free UHR Resolution: 0.01 mg/L
  • Chlorine, Free UHR Accuracy: ±0.03 mg/L ±3% of reading
  • Chlorine, Total Ultra HR Range: 0 to 500 mg/L
  • Chlorine, Total Ultra HR Resolution: 1 mg/L
  • Chlorine, Total Ultra HR Accuracy: ±3 mg/L ±3% of reading at 25 °C
  • Bandpass Filter Wavelength Accuracy: ±1.0 nm
  • Power Supply: Alkaline 1.5 V AA (3 pcs.)
  • Battery Life: > 800 measurements (without backlight)
  • Dimensions: 142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")
  • Weight: 380 g (13.4 oz.)