ORP/Redox-500mL 240mV Hardness Tester Very easy to use -

Very easy to use - even by non-technical personnel

The crawlers can operate fully submersed and are water resistant to depths of up to 100m (330')

The PVC Double Valve Pump operates up to 100 ft

strong polyurethane wheels

It can be created by taking conventional water and exposing it to electrically charged resins that will be attracted to and bind with salts

ORP/Redox-500mL 240mV Hardness Tester Very easy to use -HI7021L 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.