The Elite ORP pocket tester features a simultaneous display of the Oxidation-Reduction-Potential (ORP) measurement with temperature. With leakproof, transparent wide-base cap for upright standing with fill line indicator.
POA means "Price On Application". Items displaying POA instead of the sell price do so for a number of reasons, not least because we anticipate some additional information is required in order to supply the most suitable options/configuration to each individual customer.