Factory set at approximately 2., 5 psig/°F (32 kPa/°C) Air connections two (supply and output) · Dials range 55 to 85°f · Sensitivity adjustable from 0.75 to 4.0 psig/°f (9 to 50 kpa/°c) · Factory set at approximately... Refer to t-4000 Series Pneumatic room thermostat product Bulletin (lit-7171060p) for important product information. Pneumatic Thermostat Direct Acting with Cover Conversion Kit 2 Pipe Horizontal 55-85 Degrees Fahrenheit Single Temperature Thermostat High Volume Johnson Controls T-4002-201 Sensor HVAC Pneumatic Control Thermostat Air connections two (supply and output) High Volume Output, Single Temperature Application, Direct Acting, 55 F To 85 F Dial Range, Horizontal Mount Manufactured by Johnson Controls. made in United States.