Hanna HI96745 Chlorine, Total Hardness, Iron LR and pH Portable Photometer (6.5 – 8.5 pH)

Range    
– pH: 6.5 to 8.5 pH
– Chlorine: 0.00 to 5.00 mg/L (ppm)
– Total Hardness: 0.00 to 4.70 mg/L (ppm)
– Iron LR: 0 to 1.60 mg/L (ppm)
Resolution    
– pH: 0.1 pH
– Chlorine: 0.01 mg/L under 3.50 mg/L; 0.10 mg/L above 3.50 mg/L
– Total Hardness: 0.01 mg/L
– Iron LR: 0.01 mg/L
Accuracy @25°C    
– pH: ±0.1 pH
– Chlorine: ±0.03 mg/L ±3% of reading
– Total Hardness: ±0.11 mg/L ±5% of reading
– Iron LR: ±0.01 mg/L ±8% of reading
Light Source: tungsten lamp
Light Detector: silicon photocell with narrow band interference filter @ 525 nm
Power Supply: 9V battery
Auto-off: after ten minutes of non-use in measurement mode; after one 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
Dimensions: 192 x 104 x 69 mm (7.6 x 4.1 x 2.7″)
Weight: 360 g (12.7 oz.)
Method    
– pH: Phenol Red method
– Chlorine: adaptation of the USEPA method 330.5and Standard Method 4500-Cl G
– Total Hardness: adaptation of the Standard Methods for the examination of Water and Wastewater, 18th ed., colorimetric method
– Iron LR: adaptation of the TPTZ method
Order Information: HI 96745 is supplied with sample cuvettes (2) with caps, battery and instructions.

Warranty:  12 month