SHARK HQ vs Arcus Trimix Blender Usage & Stats

This app is used to provide diving equipment to diving enthusiasts, allowing them to rent online and take out the equipment for use on site Main users: Scuba Divers After User is confirmed User logs in. User clicks on locker units he wants to rent from User clicks on available locker. User pays for tank rental. User scans code in app with scanner on locker unit Locker Opens User takes and uses scuba tank User scans code with scanner again Locker opens User returns tank