Johnson Controls The Johnson Controls is a source provider of integrated smart green building systems, services and solutions. Water Flow MeterFlow SwitchLevel SwitchTemperature Sensorplease feel free to contact us if you need any further information or request a quote. CONTACT USHumidity SensorOccupancy SensorCO2 SensorPressure SensorRefrigeration Pressure ControlsDuct Smoke SensorMotorized ValveVariable Air Volume BoxVariable Speed DriveThermostat