Fast shipping in 21 days. Product looks very good, Not tested it yet. This sensor is not 4-state logic like most of the ZP-modules but has a UART output. This can be a benefit because it allows full detail measuring. But you have to write code to use it and there is not much info available on the internet about this device. Only info found was a datasheet in Chinese but I hope it should be sufficient to build code. Not for beginners!!!! Recommend product and reseller.