Features:The TDS to EC Conductivity conversions are true to the curved scale, as opposed to being a linear factorThe temperature compensation coefficients are also matched to the respective scales (KCl, 442 or NaCl), ensuring greater precisionThe Meter can be calibrated digitally to any known value, while the other meters can only be calibrated to 1 or 2 values (like 1413)Incredible accuracyResolution down to 0.1 µ SMeasures Electrical Conductivity, TDS and TemperatureWaterproofOn-screen temperature display in Celsius or FahrenheitThree non-linear EC-to-TDS conversion factorsThree true ATC coefficients Auto-ranging (0-9990 µ S, 0-8560 ppm)Detachable platinum electrodesLow battery indicatorComes with lanyard and user's guide Ideal for the most demanding of usersPerfect for almost every industry and application