Hanna Alkalinity Checker

The Hanna Alkalinity Checker is a pocket colorimeter that reads alkalinity in dKH for marine and reef tanks, so you get a digital number instead of matching a colour by eye. Alkalinity supplies the carbonate corals use to build skeleton and buffers pH, which makes it one of the readings reef keepers watch most. One button runs the test, and there's a built-in timer.

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Details

Category

Equipment & supplies

Brand

Hanna

Model

HI772

Tests for

Alkalinity (dKH)

Range

0.0 to 20.0 dKH

Resolution

0.1 dKH

Accuracy

±0.3 dKH ±5% of reading

Method

Colorimetric

Light source

LED at 610 nm

Light detector

Silicon photocell

Battery

1 x 1.5V AAA

Auto shut-off

After 10 minutes of non-use

Operating environment

0 to 50 °C, up to 95% RH non-condensing

Dimensions

86 x 61 x 37.5 mm

Weight

64 g

Suitable for

Saltwater and reef aquariums

What's included

2 sample cuvettes with caps, reagent starter kit for 25 tests, 1 ml syringe and tip, battery, instructions, quick start guide