Pneumatic/Electric Switch, 120Vac,0-22.5 PSI Switching Pressure, 3-13 PSI Differential Pressure Range, Compression Fitting Air Connection for 1/4" OD Tubing, Used to Convert a Pneumatic Signal to an Electrical Switching Action,-30-125 Degree Temperature Range, 25 PSI Maximum Operating Pressure

Pneumatic Electric Switch, 2-24 PSI Setpoint Range, 2 PSI Differential Pressure Range, Surface Mount, Barb Fitting Air Connection for 1/4" OD Plastic Tubing, 40-140 Degree Temperature Range, 5-95% RH Operating Humidity Range, Make R-W on Pressure Riseto Setpoint plus Differential, Make R-B on pressure Fall to Setpoint, Switch Operation Converts Pneumatic Signal to Electrical Switching Action (SPDT)