Checker pocket photometer f. Magnesium hardness (Freshwater)

•  0.00 to 2.00 ppm range
•  Ideal for wastewater

The HI-719 pocket checker is a simple and accurate way to measure magnesium hardness.

The HI-719 uses an adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish violet tint in the sample.

Key features

• Accurate and easy to use
• ±0.20 ppm ±5% of reading
• 0.01 ppm resolution
• Designed to work with Hanna reagents
• Large easy to read digits
• Auto shut-off

Ideal for

• Water purification systems
• Heating and cooling systems
• Drinking water
• Wastewater

Supplied with

• 2 sample cuvettes with caps
• Reagents for 25 tests (re-ordering information HI-719-25 x 25 tests)
• Syringe with tip
• Plastic beaker
• 1 x 1.5V AAA battery
• Instructions

Also available: Calibration set HI-719-11.

Four steps. One click. Instant Readout.

  1. ‘Zero’ the Checker®HC with your vial & water sample inside

  2. Take the vial out and add your reagent

  3. Place your vial into your Checker®HC

  4. Press the button and read the results

Use HI-719-25 Reagents with Hi-719 Magnesium Hardness Handheld Colorimeter - Checker®HC - 25 tests.

Use HI-719-11 Calibration Check Set with Hi-719 Magnesium Hardness Handheld Colorimeter - Checker®HC.