PowerScan PM8500 Reader (910MHz, Display, USB Kit with REM Battery) The PM8500 readers feature Datalogic's exclusive 3GL (3 Green Lights) for superior good read feedback. The patented Green Spot directly on the code and dual Good Read LEDs on the top and back of the cap adds increased visibility at any angle. The PM8500 reader's mechanics have been developed and tested to withstand extreme environmental conditions maintaining consistent reading capability without degrading performance or reliability. Its ergonomic enclosure is lightweight and well balanced to ensure optimal operator comfort during scan intensive operations. A built-in metal tether hook for suspended applications ensures workplace productivity.