Edwards nAPG series Digital Active Pirani vacuum gauges are available in two models. The nAPG-M is the standard model and measures from atmosphere to 10-3 mbar, the nAPG-LC is a corrosion resistant version with measurement from atmosphere to 10-4 mbar. Both gauges feature compact size for easy installation, a serial output and a replaceable sensor tube. They are also CSA and C/US approved as well as fully Edwards nAPG series Pirani Brochure