This article explains the differences between RF850 and RF851. 

Both RF850 and RF851 are UHF RFID readers for PM85.

RF851 is an improved model that is added several features, such as NFC Tap-to-Pair and removable battery.

ModelRF850RF851
Reader Image

LED Indicator

Located opposite the RFID antenna

Located next to two buttons

BatteryUnreplaceableReplaceable
NFC Tap-to-PairNot SupportSupport


RFID Application

  • From PM85 85.05, use RFID Control application instead of RFID Sample or RFID Demo.
  • If you want to use NFC Tap-to-Pair for connecting RF851 with PM85, install RFID Control application with the version 1.1.6 or higher