ST800K-B (Brand- Senter, Country of origin China)

Features:

Multi-wavelength precise measurement

Absolute power measurement of dBm or xW

Relative power measurement of dB

LCD backlight display

Auto off function/ Auto off LCD backlight display function

Different types of adapter: FC, SC, LC, ST etc.

Rechargeable battery

OLP-35 (Brand- VIAVI Former JDSU, Country of origin USA)

Features:

850, 1300,1310,1490,1550, 1625 nm wavelength

Different types of adapter: FC, SC, LC, ST etc.

Lithium battery / rechargeable / AAA battery

Multifunctional power meter

 

EPM-50 & EPM 300 (Brand- EXFO, Country of origin Canada)