.01 to 20 Torr Pirani Gauge Tube (Nude Design). Mounted on 2.75 Conflat� flange with 10 inch (25 cm) pigtail, with high temperature insulation. Bakeable to 250�C without damage, operates 0-50�C. Can also be used with .01 to 20.00 mbar and 1 to 2000 Pa instruments. Up to 250 foot(75 meter) gauge tube cable can be used.