Pressure Control Number of Stages 1 Control Air Pressure 2 to 20 psi Differential Pressure 0.2 psi Contact Action SPDT 1/8 in NPSF Air Connections Max Ambient Temp 140 Degrees F 120-277V AC Height 3 7/8 in Width 2 3/32 in Depth 3 3/16 in Low Range Pressure and Narrow Differential UL / CSA