HANNA 774 Mini-Photometer Phosphate traces Checker (up to 0.90 mg/L)

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

Specifications:

• Range: 0.00 to 0.90 mg/L (ppm)
• Resolution: 0.01 mg/L (ppm)
• Accuracy (at 25°C): ±0.02 mg/L (ppm) ±5% of reading
• Method: Ascorbic acid method
• Light source: LED at 525 nm
• Light detector: silicon photocell
• Power supply: 1 x 1.5 V AAA battery
• Auto power off: after 7 minutes of non-use or 2 minutes after a measurement
• Weight: 52 g