The Rex DD-4 Digital Durometer is the successor to the popular Rex DD-3. With its impressive list of features, the DD-4 is truly state-of-the-art and is the ideal instrument for lab use. Some of the new features are a new larger LCD display, USB data ports for computer compatibility, a locking feature to prevent accidental erasure of tolerances, automatic shutoff and low battery warning.


·         Includes NIST Calibration Certificate

·         Conforms to ASTM D-2240

·         One Year Warranty

·         Custom Made Carrying Case

·         High and low buttons for setting tolerance limits

·         Solid state circuitry with LCD display

·         AC Adapter and Batteries included

·         Response speed is immediate

·         Holds reading until reset

·         0.1 resolution

·         Dial rotates up to 270°

·         Extra-Large Number Display

·         Capable of USB and RS232 Communication with Rex Approved Cables