Profile: Micro Pneumatic Logic, Inc. is a manufacturer of pressure switches for appliance, heating, medical, automotive, and other OEM equipment designers. Our product line includes electro-mechanical pressure, vacuum and differential switches. Our MPL 500 series switches offer pressure, vacuum, and differential sensing, sensitive to as low as 0.10 in/ H2O. Their accuracy and reliability offers general purpose low pressure to electric interface for monitoring and control applications. The MPL 500 series is ideal for OEM applications. Our MPL 9391 is a low pressure, variable output sensor which combine diaphragm and strain gage technologies to provide an economical but robust alternative to other transducers. The MPL 9391 is ideal for new high-efficiency heating applications requiring feedback for intelligent controllers, ECM motors, logic-controlled blowers and other smart components for modulating furnace control applications.