Hanna HI96746 Iron, Low Range, Portable Photometer

Range: 0.00 to 1.60 mg/L
Resolution: 0.01 mg/L
Accuracy: ±0.01 mg/L ±8% of reading @ 25°C
Light Source: tungsten lamp
Light Detector: silicon photocell with narrow band interference filter @525 nm
Method: adaptation of the TPTZ method
Environment: 0 to 50°C (32 to 122°F); max 95% RH non-condensing
Battery Type: 9V battery
Auto-Shut off: after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder
Dimensions: 192 x 104 x 69 mm (7.6 x 4.1 x 2.7")
Weight: 360 g (12.7 oz.)