The Additel 761A-D also provides differential and gauge measurement which covers the range of
-0.95 to 2.5 bar (-13.5 to 35 psi). This unit comes with a CP35 module (-0.95 to 2.5 bar) and one low range module of your choice ranging as low as 25 mbar (±10 inH2O). Each ADT761A-D can be preconfigured with the modules that fit your need to give you the best precision at the pressures you perform calibrations.