1500 PPM meter calibration solution for EC and TDS meters.
Will read 2142 S (microsiemens) using a .7 conversion factor.
Compare to Hanna HI70442P, HI70442M
1413 S (microsiemens) meter calibration solution for EC and TDS meters.
Will read 989 PPM using a .7 conversion factor.
Compare to Hanna HI70031P, HI7031M
CONDUCTIVITY STANDARDS - EC meters (electrical conductivity) measures soluble salt concentration in a primarily two scales. Most common in the hobby sector is an interpretation of total dissolved solids (TDS) as parts per million (PPM). Most accurate and used in science and industry is Seiman's displayed as mS (millisiemens) or S (microseimans). Genesis Labs solutions offers both values based on a conversion factor of one mS = 700 ppm or one S = .7 PPM which is intended to represent the average agricultural salts of a fertilizer solution.
