HANNA 772 Mini-Photometer Carbon Hardness Checker (up to 20.0 dKH)

Simply measure your samples in a few steps:

1. Take a water sample and insert the cuvette into the photometer
2. Take a blank
3. Add the powdered reagent to your solution
4. Insert the cuvette into the photometer
5. Press the button and read the result within 10 seconds

Features:

• Range: 0.6 to 20.0 dKH
• Resolution: 0.1 dKH
• Accuracy (at 25°C): ±0.3 dKH ±5% of reading
• Method: colorimetric method
• Light source: LED at 610 nm
• Light detector: silicon photocell
• Battery: 1 x 1.5 V AAA
• Self-extinguishing: after 10 minutes of non-use
• Dimensions: 81.5 x 61 x 37.5 mm
• Weight: 64 g