Optical Power Meter 2 in 1 Mini Rechargeable OPM -70~+10dbm/-50~+26dbm Visual Fault Locator VFL 2/5/10/20/30/50mw Built in FTTH

Optical Power Meter 2 in 1 Mini Rechargeable OPM -70~+10dbm/-50~+26dbm Visual Fault Locator VFL 2/5/10/20/30/50mw Built in FTTH

Aliexpress UK