Maintains, calibrates, diagnoses, repairs, and replaces pneumatic valve and damper actuators, thermostats, pneumatic-electric (PE) devices, pilot positioners, electro-pneumatic (EP) devices, solenoid air valves, flow restrictors, pressure gauges, piping and tubing, and other pneumatic system components from the pneumatic system air supply onwards. Maintains, calibrates, diagnoses, repairs, and replaces electric valve and damper actuators, thermostats, temperature sensors, pressure and humidity transducers, flow meters, position prove switches, freeze-stats, fuses, power supplies, and other associated electro-mechanical devices.