Usual you need to use 2 pieces UT-277 at the same time.

Model: (Pls leave the message which interface you need)

277SM: single mode (Transmission distance 20KM)

277MM: multimode (Transmission distance 4KM)

Interface optional: SC; ST; FC

Power plug standard: US standard; EU standard (If you need UK standard plug, please contact us or leave a message. )



Package included: 2pcs x UT-277