Unitech MS836 is a handheld laser barcode scanner it is also the cheapest 1D scanner in the market. It has the capability of reading more than 3 million resolution barcodes. The device supports several modes required by industries such as trigger mode, presentation mode and auto-sensing mode. MS836 helps in increasing operations efficacy by fast tacking activities. By holding the trigger button for 12 seconds, you can switch the device between different modes.