This Electric Conductivity Meter is a panel instrument for on-line monitoring of industrial process conductivity. Range switch over and constant check can both be freely set and adjusted through the operation component on the rear panel; Unique signal collecting and processing technology and special thick film circuit are adopted to make measurement accurate and operation stable; There are also other features such as linearized data, automatic temperature compensation, not subject to the length change of cable and maintenance-free. It has control function, including setting of over limit of conductivity, and the outputs are control contacts. It's an ideal auxiliary instrument of various types of small pure water units.Model TM-03 Measure arrange 0-1999us/cm Resolution 1us/cm Accuracy ±2% Full Scale temperature 5 to 50°C (41 to 122°F) Power 2 x 1.5V Shape size 156×30×20mm Weight 46g