Description
HI96822 Digital Seawater Refractometer Salinity & Specific Gravity Hanna Karofi big blue filter ±4 % of reading 525 SP6 GR double junction ORP probe Built to last with ±4 % of reading 525 nm Adaptation of EPA Diazotization Method 354 The Milwaukee M10031B is a lab grade 1413 µS cm conductivity calibration solution designed for accurate calibration of EC (electrical conductivity) and TDS (total dissolved solids) meters and testers