HANNA HI 755 Checker HC - Marine Alkalinity

HANNA Instruments HI 755 Checker HC Handheld Colorimeters, - Alkalinity, Photometer, HI755

The Only Saltwater Marine Alkalinity Tester at this Price! 25 test reagents are included.

* Easier to use and more accurate than chemical test kits

Colorimetric method Accuracy ±5 ppm ±5% of reading 1 ppm (mg/L) resolution Large, easy to read digits Auto shut off

* Dedicated to a single parameter

Designed to work with HANNA’s liquid reagents Uses 10 mL glass cuvettes

* Small size, big convenience

Weighing a mere 64 g (2.25 oz.), the Checker®HC easily fits into the palm of your hand or pocket Use for quick and accurate on the spot analysis Single button operation: zero and measure Operated by a single AAA battery

* Ideal for Saltwater Aquariums



The HANNA HI 755 Checker®HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and have low resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 755 Checker®HC is accurate and affordable.

The Checker®HC features an accuracy of ±5 ppm (mg/L) ±5% of reading and uses the colorimetric method.

The contoured style of this Checker®HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.

The HI 755 Checker®HC is extremely simple to use. After zeroing the instrument with your water sample, add the reagent to the cuvette and gently invert 5 times. Then insert the cuvette into the HI 755 Checker®HC and press the button to read the results. It’s that easy.

Order Information: HI 755 Checker®HC is supplied with (2) sample cuvettes with caps, liquid reagents for alkalinity (25 tests approx.), syringe with tip, ­­­battery and instructions.

* Specifications * Accessories * Downloads

Range 0 to 300 ppm (mg/L) Resolution 1 ppm (mg/L) Accuracy @ 25°C ±5 ppm (mg/L) ±5% of reading Battery Type (1) 1.5V AAA Light Source LED @ 610 nm Light Detector silicon photocell Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing Auto-off after ten minutes of non use Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.) Method colorimetric method