The MKS GM50A Mass Flow Controller is capable of being configured to control a wide range of Safe Delivery Source Gasses (SDS). Input and output fittings are Swagelok® 4 VCR®. It has a Full Scale Flow Range of 500 sccm and a control range of 10 to 500 sccm, a 15-pin D-subminiature connector with tied grounds, and a 0-5 VDC flow input/output signal. Typical response times are on the order of 500 milliseconds.