Marshall Stability Tester 30 kN -PC two-columns bench model with electric motor and center ball spindle providing a constant speed of 50.8 mm/min. Equipped with electronic load and displacement transducer 50 x 0.01 mm as well as a microprocessor controlled interface RS 232 C/V24 for data acquisition by use of a PC. Supplied complete with data-acquisition software UNIPRESS under windows with integrated data bank, online graphics and additional Marshall evaluation software (EN 12697/34, SN671969b, ASTM, EN7500/1 etc.), allowing input of marshall sample heights and output of marshall stability and flow values of 1 up to 4 samples with average values. Print out of protocols by use of printers suitable for use under windows. Ready for operation and including overload and travel limit switches as well as marshall stability mould, calibre and holding attachment for displacement transducer.