Honeywell Pneumatic room humidity sensor, HP971

One- or two-pipe direct-acting humidity sensor used with RP908/RP920 controllers to provide proportional control of pneumatic valve and damper actuators in systems requiring humidification or dehumidification control.
Max. safe air pressure: 172kPa
Max. media temperature: 52C
Supply air pressure: 124kPa
Pressure output: 21...103kPa
Air connection: 1/4 " tubing
Mounting place: internal wall
Action: direct acting
R.H. range: 15...85%rh