Order Numbers: 124 (EU, US)

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Fit 400 HT

The Fit 400 is a small form factor, High Temperature RFID tag capable of surviving cycling applications with temperatures to 235oC. Don’t sacrifice performance for size. With up to a 4 meter read range, the Fit 400 is the perfect solution when space is limited, but performance is demanded.


With its small form, high temperature capability and high performance, the Omni-ID Fit 400 tags are ideally suited to tracking small metal assets such as:

  • Metal hand tools
  • Metal IT assets including covert tracking
  • Embedding into metal components
  • Autoclaves and high temperature sterilizations
Construction / Finish / Material / Encasement Painted Black
Size (mm) 13.1 x 7.8 x 3.1 IC bump +/-0.5
Size (in) 0.52 x 0.31 x 0.12 including IC bump +/-0.02
Weight (g) 1.6
Attachment Film Adhesive (included) for placement only in applications exceeding +85c
Radiation Patterns
Radio Protocol
  • EPC Class 1 Gen2v2
Frequency Range
  • 866 – 868 MHz (EU)
  • 902 – 928 MHz (US)
Read Range – Fixed Reader
  • Up to 4m (13.1 feet)
Read Range – Handheld Reader
On Metal or Balanced Optimized for metal
Material Compatibility
  • Metal
IC Type (Chip) Alien Higgs 3
Memory EPC: 96 bits
User: 512 bits
Unique TID:
TSL1166 Specific Maximum tag to cone open end distance:
Minimum distance between tags whereby reader will only detect desired tag:
Recommended read power:
Recommended write power:
Operating Temperature –20°C to +85°C
Max Temperature Exposure Long term:
Short term:
Range: -20°C to +235°C
IP Rating IP68


CE, RoHS, Ex, ATEX/IECEx certified (option), US&Canada (C1D1/D2) certified (option)