I bought this pressure sensor from Tanotis and I will recommend this website for all your electronics purchases.
Incomplete product, Two items are missing and no one in tanotis is supporting me for this. Dont ever purchase any product from this website.
XP POWER ECM40-60 CONKIT Power Supply Accessory, Connector Kit, ECM40, ECM60 Series
This is a piece of hardware you need to convert your ballhead into an acra swiss attachment for quick release for your tripod.