Original New Portable OP-3208 Optical Power Meter -50dBm～+26dBm/-70dBm～+6dBm Fiber Optic Tester Power Meter

Features:

User self calibration function

Comfortable LCD display and optional backlight LCD display supports night operation

Power measurements in dBm or mw and insertion loss in dB

Low battery consumption, more than 240 hours continual operation time for three 1.5V alkaline batteries

10 minutes Auto-off function can be activated or deactivated.