The Edwards APG 200 series Pirani  gauge is available in   two models. The APG 200-XM  that measures vacuum to  10-3 mbar and the APG 200-XLC  which is a more  corrosion resistant gauge that measures vacuum to 10-4   mbar. All gauges are available in NW16, NW25 size flange   fittings. Other fittings can be supplied upon request. Every  gauge is available with  an optional printed certificate of  certification upon request that supports the pre-testing of  every  gauge. All gauges feature a compact size for easy  installation, a linear output and a replaceable sensor tube.  These gauges are compatible with all Edwards TIC   instrument controllers and other Active gauge controllers and displays. They are also CSA, C/US approved as well as fully RoHS  compliant due to their lead-free construction. APG 200 Brochure