Keller America Inc is the North American subsidiary of Keller AG Switzerland, a leader in level and pressure sensing. Keller has grown from a manufacturer of inexpensive, miniaturized microprocessors to fully packaged pressure transmitters with Total Error Band performance. Keller remains at the leading edge of the development and innovation of state-of-the-art pressure sensors, transducers, and transmitters. Keller has an annual sensor production, combining OEMs with their own transmitter products, of over 1 million pieces. Keller is committed to continuing development of existing technologies as well as pioneering innovations that enable them to break into new markets. Full scale ranges from only 4 inches of water Full Scale up to 29,000 PSI are all within the Keller capabilities. Operating temperatures from -55 to 200°C are also possible with Keller. No matter what your market, Keller can offer a tailored solution.