Specification: Range:3.5%-40% Principle: Resistance Measurement Accuracy: Plus/minus 0.2% Display:2x16 columns LCD Display Weight:2 KG Approx. Without accessories Size:20x14.5x9.5 cms approx. Power: Six 9V Dry Cells or 230 volts,50 Hz AC through adaptor Temperature: Automatic Special Features: 1. Menu driven Operations. 2. Direct Reading Display along with room temperature. 3. RS-232 Port available for interfacing Printer or Personal Computer. 4. Backlit facility, Real Time Clock. 5. Date- Time setting available.