• Monitor & control the most important parameters
• Easy-to-use
• No need to calibrate probes or change membranes

The Hanna C203 Multi Test Centre comes with the reagents for Ammonia, Nitrite, Nitrate, Ph, and Dissolved Oxygen, making it the best value on the market today.

Made with ease of use in mind, there is no need to calibrate as the test procedure does this for you.

Simply fill the test tube with pond water, insert the meter and press the "zero" button.  This will calibrate the pond water sample to the meter as a reference, add the reagent to the same test tube, insert back into the meter, press the read timer button, this starts a timer count down, then the meter shows the result on the digital display. That's it! It doesn't get any easier.

• Ammonia in Ponds
• Nitrate in Ponds
• Nitrite in Ponds
• pH in Ponds