We were looking for a professional PDA with a barcode reader and a TOF camera for a measurement application in the logistics sector. Having little experience with barcodes and Android applications, we received excellent advice from Yuki Chen who recommended the ME61 device. We got much more than we expected to find. The PDA comes with a pre-installed app for measuring certain packages, making it very useful for couriers and other logistics professionals. The PDA’s hardware is more than sufficient, exceeding our needs, with IP67 rating, removable battery, Wi-Fi, 4G, and configurable buttons. The ME61 is a highly recommended product. The pre-installed measurement application didn’t perfectly fit our needs, and we received professional technical support for the Android software. Few companies can provide such detailed technical support. In summary, it is very difficult to improve on both the product and the technical and commercial service offered by Meferi.