Our digital moisture meters are designed for both laboratory and field applications to test the moisture content in grains during harvesting and post-harvest storage, milling applications. Based upon conductivity / resistance measurement principles, these moisture meters incorporate multi-grain calibration to cater a wide range of applications in food grains / seed industry. Technical parameters: Range : 3.5 to 40% Accuracy :±0.2% Display :three seven segment display Principle :resistance measurement Power : six 9v dry cells or 230 volts 50 hz ac through adopter. Temperature :automatic Size : 300x170x260 mm. Approx. Weight :9.5 kg approx. Without accessories. Special features : (i) direct reading display for all commodities (ii) room temp. Display (iii) no arithmetic required. (v) rs-232 port available for interfacing printer or personal computer. Optional features: (i) separate commodity code system. (ii) auto calibration