Ben alors John, internet serait encore un mystère ?
http://www.amazon.com/Competition-Electronics-Pocket-Timer-Misc/dp/B008KMOSAI
https://www.competitionelectronics.com/index.php?page=shop.product_details&category_id=7&flypage=flypage.tpl&product_id=28&vmcchk=1&option=com_virtuemart&Itemid=79
et toutes la série de recherche :
https://www.google.fr/search?q=pocket+pro+II&ie=utf-8&oe=utf-8&rls=org.mozilla
official&client=firefox-a&gws_rd=cr&ei=KG8oUrvROa6R7AbJr4GwAw
Elfy