... calibaration system makes the syringe pump to be useable for any standards of syringe with the accurately controlling of injuction ... 3.5kgPls notice that we also supply oxygen concentrators with CE, oximeters with CE/FDA, monitors, aspirators, Ultraousnd scanners, ECG ... , ultrasound scanners, suction pump etc. For details, pls feel free to contact us. Micro syringe pump with bolus function and unique ...