The MS840 is a premier wireless barcode scanner ready to be deployed in the most challenging of work environments. The MS840B 2.4GHz Wireless barcode scanner you'll never have to worry about losing your connection or losing data. Instead, your team can focus on efficiency and productivity. Move throughout your entire warehouse space to process shipping and receiving and manage inventory. Check equipment in or out and process returns with the MS840B in light industrial spaces. And of course, this barcode scanner is a great choice for taking inventory on sales floor and in the stock room. nce you invest in all the great features the MS840B has to offer, you’ll want to enjoy them for as long as you can. Conveniently, our 2.4GHz Wireless barcode scanner repels dust and water, protecting the technology within. It can also withstand falls of up to 6 feet to concrete, bringing durability and lasting value to your team.