DD 4 digital durometer is an excellent instrument for data collection or repetitive quality control testing . With its impressive list of features , the DD 4 is truly state - of the art , and is the ideal duroeter for lab use. Some of the features are : a large direct drive LCD display, RS232 data ports for computer compatibility , tolerancing , a locking feature to prevent accidental erasure of tolerances, automatic shutoff, low battery warning , abd new accessories such as MTI and SPC type printers, audio attachments and software .

Deatures :
- High & low buttons for setting tolerance limits
- Solid state circuitry with LCD display.
- Come with batteries & AC adapter.
- One tear warranty.
- Response speed is immediate
- Holds reading until reset.
- 0.1 Resolution.
- Dial rotates up to 270 deg
- Custom made carrying case
- Certificate included
- Accessories also available : Printer, Audio Attachment & Lab software
- Conforms to ASTM D-2240 and NIST Traceable