The HydROtwist Hand Held TDS Meter is a great tool for sampling your potable water supply, or for testing the output of your watermaker/desalinator.
Standard Operating Range: 1-1999 PPM
Accuracy: 2% of Full Scale
Resolution: 1 PPM
Self contained cell design
Automatic temperature compensation (ATC)
Field tested durability
Operating temp: 50 - 122F