The Ubiquiti UFiber UF-SM-1G-S SFP Module is best for long-distance single-mode runs,up to 3 km at 1 Gbps.

Supported Media: Single-Mode Fiber

Connector Type: (1) LC

BiDi: Yes

TX Wavelength: Blue: 1310 nm
Yellow: 1550nm

RX Wavelength: Blue: 1550 nm
Yellow: 1310nm

Data Rate: 1.25 Gbps

Cable Distance: 3km

Pack Options: 1-Pair, 10-Pairs