Mini-Photometer Marine Calcium

650,00 kr.

På lager: På lager

Hanna Checker – Calcium Colorimeter

Ideal for salt water aquariums and coral reef tanks.
Designed exclusively for saltwater aquariums, the HI-758 offers a quick, easy and highly accurate method of checking Calcium.

For replacement reagents for Calcium Checker®HC use code HI-758-26 for future purchases.

  • Easy to use
  • Accurate results every time
  • Exceptional price
  • Large LCD display

Uses top quality technology to deliver high precision results. The HI-758 Calcium Checker is a simple, accurate and cost effective way to measure marine calcium in water.

Designed as a more accurate alternative to chemical test kits, the HI 758 provides quick, accurate results in four easy steps;


  • Add 1ml of reagent A and add 9ml of deionised water to cuvette.
  • Insert cuvette into the Checker and zero it out.
  • Remove cuvette and add 0.1ml sample to be tested and 1 packet of reagent B
  • Reinsert sample and click the button to measure your results or press and hold the button for 3 seconds for a time reaction reading.

The contoured style of the HI-758 Calcium Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.

Ideal for:


  • Salt water aquariums
  • Coral reef tanks
  • Water quality
  • Environmental
  • Education

Main Benefits

  • Testing is quick and easy
  • High precision results – more accurate than chemical test kits
  • Auto shut-off feature means the Checker cannot be left on by mistake
  • Fully portable, fitting easily into both palm and pocket

Supplied with

  • 2 sample cuvettes
  • Cuvette cap
  • Starter pack of reagents (HI-758-26)
  • 1 x 1.5 AAA battery
  • Instructions
    Also available: HI-758-11 Calibration Set



  • Range:  200 to 600 ppm
  • Resolution:  1 ppm
  • Accuracy @ 25°C:  ±6% of reading
  • Light Source:  light emitting diode @ 610 nm
  • Light Detector:  Silicon Photocell
  • Environment:  0 to 50 °C (32 to 122 °F); max 95% RH non-condensing
  • Battery Type:  (1) 1.5V AAA
  • Auto-off:  after 10 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:  adaptation of the zincon method

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