The AD-681m4D is the first with dual antenna technology, it provides orientation insensitivity and excellent edge reading performance for a wide variety of UHF RFID tagging applications.

Equipped with 128-bit EPC and 32-bit user memory, recommended for a variety of applications such as supply chain management.

This Tag provides dual antenna technology - two fully independent antenna ports, can reach up to -20 dBm read sensitivity when in free space; allowing read distances of up to 15 feet over a wide range of dielectrics.

ELECTRICAL:
- Air Interface Protocol: ISO-18000-6C, EPC Class 1, Gen 2
- Operating Frequency: Global (860–960 MHz)
- IC Type: Impinj Monza 4D
- Memory: EPC 128 bit , User 32 bit, TID 48 bit
- EPC Memory Content: Not guaranteed unique
- Max Read Distance: > 4.6 m (15 ft)
- Applicable Surface Materials: Corrugate, plastic, wood and glass

MECHANICAL:
- Tag Form Factor: Wet inlay
- Tag Materials: Printable White PET (Thermal Transfer)
- Recommended Ribbon: Full resin
- Attachment Method: S-490 (FASSON)
- Dimensions: 53 x 53 mm (2.087 x 2.087 in)
- Weight: > 1 g

ENVIRONMENT:
- Operating Temperature: 40° to 85° C (-40° to 185° F)