GPS device support height, although it's harder to get a precise fix with over-the-counter GPS devices, but they do give elevation, you can see even it in the data menu of many car-nav GPS devices. Of course all the layers of concrete and metal might make pinpointing once inside a parking structure a bit harder.
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What happens if I can't remember what floor of the garage I parked on? Is there an up and down arrow....... : P
GPS device support height, although it's harder to get a precise fix with over-the-counter GPS devices, but they do give elevation, you can see even it in the data menu of many car-nav GPS devices.
Of course all the layers of concrete and metal might make pinpointing once inside a parking structure a bit harder.