SY-1.5A automatic temperature control asphalt digital extensometer this instrument casing liner used in all imports of stainless steel by bending, temperature-controlled digital and ductility values ??of the average of the three specimens can be displayed directly, using state-of-the-art permanent magnetic low-speed synchronous motor with recycled water plant. The instrument meets the standards of the Ministry of Communications JTJ052-2000. Specification: dual digital extending Speed: the 5 ± 0.25cm/min maximum elongation: 1m 1.5m 2m Operating voltage: 220V ± 22V heating power: 1.2kW