The 1128 from Technology Solutions is a RFID Reader with Frequency US 902 to 928 MHz or EU 865 to 868 MHz, region dependent, Operating Temperature -20 to 60 Degree C, Read Distance Up to 4m (13 feet), Storage Temperature -40 to 70 Degree C, Supply Voltage 4.2 VDC. Tags: Handheld Reader. More details for 1128 can be seen below.