HANNA HI97771 Free Chlorine and Ultra High Range Total Chlorine Portable Photometer (Free Clo: 0-5 mg/L, Total Clo: 0- 500 mg/L)

Free Chlorine Range:0.00 to 5.00 mg/L (as Cl2)

Free Chlorine Resolution:0.01 mg/L

Free Chlorine Accuracy:±0.03 mg/L ±3% of reading

Total Chlorine Range:0 to 500 mg/L (as Cl2)

Total Chlorine Resolution:1 mg/L

Total Chlorine Accuracy:±3 mg/L ±3% of reading

Chlorine Method:free chlorine: adaptation of the EPA 330.5 DPD method total chlorine: adaptation of the Standard Methods for Examination of Water and Wastewater, 20th edition, 4500-Cl.

Photometer/Colorimeter Light Source:Light emitting diode

Photometer/Colorimeter Light Detector:silicon photocell with narrow band interference filter @ 525 nm

Bandpass Filter Bandwidth:8 nm

Bandpass Filter Wavelength Accuracy:±1.0 nm

Cuvette Type:round, 24.6 mm diameter (22 mm inside)

GLP:date, time of last calibration

Display:128 x 64 pixel B/W LCD with backlight

Logging Type:automatic logging

Logging Memory:50 measurement

Battery Type/Life:1.5V AA battery (3 pcs.) / > 800 measurements (without backlight)

Automatic Shut-Off:After 15 minutes of inactivity (30 minutes before a READ measurement)

Environment:0 to 50°C (32 to 122°F); relative humidity: 100% (IP67)

Weight:380 g (13.4 oz.) with batteries

Dimensions:142.5 x 102.5 x 50.5 mm (5.6 x 4.0 x 2.0")

Ordering Information:HI97771 is supplied with cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate HI97771C is supplied with CAL-Check standards, cuvettes (2), caps (2), plastic inserts for cuvettes (2), scissors, cuvette cleaning cloth, 1.5V AA batteries (3), instruction manual, and instrument quality certificate.