Hanna Calcium Checker 200 To 600 Ppm Hi-758

HI-758 Marine Calcium Handheld Colorimeter - Checker®HC

Ideal for salt water aquariums and coral reef tanks
Designed to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.

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.

We aim to dispatch all orders the same working day provided it is received before 1pm and payment confirmed, subject to stock availability. Orders received after this time may not be dispatched until the next working day. In the unlikely event of an item being out of stock, we will contact you via email to advise you of an estimated delivery date, to give you the option of cancelling or waiting.

Small and lightweight items (below 2kg) will normally be sent via Royal Mail 1st class, and will be delivered within 5 days, usually next day.
Larger orders with a total weight over 2kg will normally be sent via parcel carrier for delivery within 2 working days.
Any orders placed after 11am on Saturday will be dispatched on Monday. If the order is placed over a bank holiday it cannot be dispatched until the first working day.
We reserve the right to use the most cost effective service to get your order to you as quickly as possible.

For more details, see delivery info.