General Tools PM9100 Heavy Duty Digital Manometer RS232 measures mbar, psi, Kg/cm2, inch/Hg, mm/Hg, inch/H2O, meter/H2O, atmosphere. This heavy duty digital manometer RS232 has a dual & differential input of 2000 mbar x 1 mbar. Formerly Mannix Instrument.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
