The FHS2T01 is a stable, precise and portable instrument for field and laboratory use, it works at 1310/1490/1550nm (recommended by ITU-T, for PONs), . 3-wavelength selectable Adjustable output power LCD with back light for operation in dark environment Modulation frequencies 270Hz,1KHz, 2KHz,Automatic wavelength recognition Two-way powering system: AC adapter and rechargeable batteries Battery capacity indicator with auto-off function

Features:

Easy to use,straight forward operation

LCD back-light for easy operation in dark environments

+/3 dB adjustable range

Rechargeable battery inside