This Canfield Connector miniature timer makes any valve, with the DIN 43650 Form “A”/ISO 4400, EN175301-803:2000 electrical interface, able to operate as a compressed air system condensate removal valve. The unit installs in a modular form between an existing coil and connector. No new wiring is necessary. Retrofits on virtually any installation. It works with the valve brand of your choice. The cycle and on times are easily adjustable and two indicator lights show status.
See more at: http://www.canfieldconnector.com/products/series/3028/sandwich-crt