http://www.sensorsone.co.uk/products/11/Pressure-Transducers-V.html

Find voltage output pressure sensors for all types of applications. Whether you are measuring low pneumatic pressures or high level hydraulic pressures you will find a wide choice of sensors with different options for electrical connection, output signal and pressure connectors. All products are categorised to help you find the right sensor for a particular application such as intrinsic safety, geotechnical research or HVAC building management. There are many articles which explain pressure measurement terminology and provide tips for choosing pressure instrumentation. Online tools are available from every page for converting engineering units and creating specifications to further assist you in the selection of the most suitable pressure measuring device. ..