Using your phones camera and unique elements of BOCs medical Integral Valve cylinder packages, the Remaining Time Estimator app can quickly and safely give you an estimate of when the cylinders content will be low based on your stated flow rate. The app allows you to set a reminder when the cylinder will be low and give the cylinder a reference or "name" so you can track multiple cylinders at the same time. The app also includes the instructions for using our Integral Valve products. The app is ideal for porters, nurses, healthcare assistants and paramedics who have to move patients on oxygen and in those locations where no wall outlet oxygen is available. When you first install and run the app, theres a tutorial to help explain how to use it. It can be accessed at any time from Menu > Help > Help with the app.The app is compatible with the following UK & Ireland BOC Integral Valve products: Oxygen: CD, ZD, HX, ZX, DD, ZH. Heliox: HX. Not compatible with Entonox packages, other medical or non-medical valves. The app is an assistive aid, it is not an alarm and does not negate the user’s responsibility to ensure correct oxygenation of the patient. Always check the content gauge on the cylinder.