RFID Parcel Sensor Knows If Your Delivery Has Been Dropped

A British invention company called Cambridge Consultants has developed a sticky radio tag that will spill the beans on dodgy delivery firms. 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.