Awesome, no more will we have to argue with the dumbfounded UPS guy explaining that the crushed packaging at your droorstep with boot prints, "was like that when it left the factory."

Called DropTag, the gadget combines a battery, a low-energy Bluetooth transmitter, an accelerometer and a memory chip. Stuck on a parcel as it leaves an e-commerce warehouse, it logs any g-forces above a set risky shock level that it experiences. The idea is that when the courier puts it in your hands, you turn on Bluetooth on a smartphone running a DropTag app and scan it before you sign for it.

 Parcel sensor knows your delivery has been dropped.