This is the latest model 3930 produced by Boehringer, U.S.A., which manufactured the world's first dedicated VAVD controller in 1999. This is an easy-to-operate VAVD controller designed and manufactured with many years of their experience.

Pressure monitoring unit for Heart-lung machine with multi-functions of measurement at double channels, indicating values of positive/negative pressure and values of pneumatic/invasive blood pressure.