La description

Transmissive Lens
Model F-1*1
Type Side view
Compatible fibre FU-77V/77 ,FU-77G ,FU-7F/86A ,FU-86Z ,FU-78/84C/88K
Environmental resistance Ambient temperature -40 to +70 °C*2
Weight Approx. 2 g
*1 For details on the detecting distance, see the fibre amplifier catalogue. *2 To use the F-1 at a temperature of 70 °C or more, use the F-1 with heat resistant specifications. Use the F-1 with heat resistant specifications at a constant temperature.
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