What to Know: To use an iPhone for storage, the device must be mounted to the bottom of a glass or metal container.
How to Attach: You can attach the iPhone to the top of a metal or glass container by attaching it to the side with a bracket.
How To Use: The device should be placed at least 1.5 inches (5 centimeters) from the side of the container.
This is known as the “front of the glass” angle.
It also works if the device is mounted on a shelf, but the container should be tilted so that the top half of the device rests on the bottom half.
How Much Capacity: The iPhone can hold about 2.5 liters (8.3 ounces) of liquid, but can hold up to 3 liters in liquid or 1 liter (5.5 ounces) in clear liquid.