Using Multi parameter Meter…. has remained reliable and accurate for 4 yrs now.

I love and trust the Hanna checkers, PH meter and reagents.

My orders have always been delivered on time and with exactly what I ordered. I have needed assistance in the past with procedures and getting new instructions booklets and the tech support was great. I love the aquarium product line, and it is a top seller in my retail store.

Great product, reliable and easy to use

I am having an issue with the phone holding calibration. I have recalibrated the unit 4 times in the past few weeks. Not sure if it’s the probe or the unit itself. Salt reading is fine but Ph slowly drops from 8. 2 to 7. 4. I have another probe in my calcium reactor connected to. Milwaukee unit so I know the water is fine. Please advise.

Great product and very easy to use!!

The alkalinity tester es great. The nitrate and calcium ones need to be simplified

Great product

Works amazing!

Quick shipment of the item I wanted. Reasonable pricing too. I will shop here again if they carry something I need.

Very happy with the regents and it’s an easy test to do

Great products !

A full refund would have been the right thing to do.

Works great and gives readings quickly

Exactly what I was needing. This is my third bottle and all have done a great job in calibrating my Hanna PPM detector. Thank Again

Not to happy with the product. Needs to much calibration every time when you switch it on it’s taking time to calibrate. After calibration it is more than 5 DO out from my other meter no idea how to correct it. Shipping was excellent ,

Fast delivery.

Fantastic products and reliable customer service.

Good product. Useful for baking sourdough bread.

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