Omron V780 Series User Manual page 312

8 Browser Interface
Item name
UII (EPC) Gives the UIIs (EPC codes) in hexadecimal of the RF Tags that
were detected during monitoring.
XX ... XX hex
Reception Gives the reception levels measured during monitoring.
level[dBm]
0 or -1 to -99
Precautions for Correct Use
To display Time in milliseconds in Excel, you need to change the display format of the cell.
Display format (user definition): "hh: mm: ss.000"
8 - 22
Description
UHF RFID System V780-series Reader/Writer User's Manual (Z389)
Remarks
The reception level will be 0 if a
communications error occurs.