TDS Measuring Range 0 - 1999 mg/l Resolution 10 mg/l Accuracy ?% FS Temp. 5 - 50癈 (ATC) Size 150 x 32 x 16 mm EC Measuring Range 0 - 10.0 EC Resolution 0.1 EC Accuracy ?% FS Temp. 5 - 50癈 (ATC) Size 150 x 32 x 16 mm