High Precision Optical Power Meter

7 wavelenghts -70~+6dBm 3AA battery

2.5mm universal interface+SC
Wavelengths 850-1625nm
Manual calibration
Silicone jacket, anti-drop 2m
±0.2 dB accuracy
Measurement range -70~+ 6 dBm/-50~+26dBm
Waterproof keys suitable for various outdoor environments
LED lights, suitable for dark environment