HI 9813-6 is a versatile, water resistant, multiparameter portable instrument specifically designed ..
This indicator continuously monitors the three most crucial nutrient parameters in hydroponic, green..
Keep your GroChek HI9813 pH temperature meter running strong with a companion replacement probe. The..
This pH/EC/TDS/temperature probe probe features a fiber junction and gel electrolyte making it ideal..
The pHEP 4 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartri..
The pHEP 5 includes a dual-level LCD, battery level indicator, BEPS, replaceable pH electrode cartri..
Economical pH kit for all hydroponic growers. The Checker®1 is easy to calibrate, uses a replaceable..
The Mini pH controller has been designed for easy, affordable installation in tight spaces, ideal fo..
ORP standard solutions allow you to test the precision of ORP electrodes. For example, by immersing ..
Hanna's Buffer solutions are made from established formulas and are standardized with a pH meter tha..
pH 7 is the most frequently used pH buffer. All Hanna solution bottles come with a pH vs. temperatur..
The Hanna Instruments HI1333B is a combination (full-cell) pH electrode with a single ceramic juncti..
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