The Sure Test® Commercial Lab Meter has the ability to measure oxidation reduction potential (ORP) with the optional ORP probe. This is very useful when incorporating sanitizers (ozone, quaternary salts, hypochlorous acid, etc.) into your grow regimen. This ORP probe is for use with the Sure Test® Commercial Lab Meter (#716390, sold separately).
Sold in Quantity of: 1
Warranty Offered: 6 Month