HM Digital ORP-200 Waterproof ORP Meter commercial EC meter Display: Large digital LCD

Display: Large digital LCD

The MW802 PRO gives you precise control over both parameters with professional accuracy

consistent calibration

One Certified Breeze pre-filter

HM Digital COM-360 Professional 4-in-1 pH/EC/TDS/Temp Meter

HM Digital ORP-200 Waterproof ORP Meter commercial EC meter Display: Large digital LCDORP 200: Waterproof Professional Series ORP Temp Meter ORP 200: Waterproof Professional Series ORP Temp Meter The ORP 200 is a professional grade ORP meter ideal for all ORP testing, including anti oxidant measurement, water purification applications, ionizers, agriculture, aquariums & aquaculture, chlorine monitoring, cooling tower disinfection, environmental testing, fruit & vegetable washing, hydroponics, metal finishing, ozone system monitoring,