HM Digital COM-100 HMDCOM100 Waterproof EC/TDS And Amp Temperature Combo Meter, 2.1&quot x 2.9&quot x 8.9&quot, White/Purple
Brand: HM Digital
Color: White/Purple
Measures electrical conductivity (EC), total dissolved solids (TDS), and temperature
Four scales: µS, mS, ppm, ppt (mS and ppt are new)
Three different nonlinear ECtoTDS conversion factors (KCl, 442TM, NaCl).
Waterproof housing (IP67 rating)
Measurement Range: 09990 µS; 08560 ppm; 09.99 mS; 08.56 ppt