ORP/Redox-500mL 240mV Multi-Gas Monitors Only Hach offers this unique

Only Hach offers this unique combination of advanced features and measurement innovation

Features include an internal combustion air pump that eliminates the need to plumb out an external air supply

battery level

and records and stores the tips of a tipping-bucket rain gauge

you can be assured of maximum effectiveness for cooling samples

ORP/Redox-500mL 240mV Multi-Gas Monitors Only Hach offers this uniqueHI7021L is a quality ORP test solution made from reagent grade chemicals and used to test platinum and gold ORP electrodes. Hanna test solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper proof seal to ensure the quality of the solution.