PH/TDS/Cond/Salinity Pen, Extech, Mfr#: EC500

Test Meter, pH/TDS/Conductivity/Salinity Pen, pH Range 0.00 to 14.00, Electric Conductivity Range 0 to 19.99 mS/cm, TDS Range 0.1 ppm (mg/L) to 9.99 ppt (g/L), Waterproof Yes, Automatic Temperature Compensation Yes, Displayed Temperature Range 0 Degrees to 65 Degrees C, 32 Degrees to 149 Degrees F, Salinity Range 0.1 ppm (mg/L) to 9.99 ppt (g/L), Operating Temp. Range (F) 32 Degrees to 149 Degrees F, Operating Temp. Range (C) 0 Degrees to 65 Degrees C, Display LCD