WY-4001 Handheld Optical Multi Meter
integrates both an optical power meter module and an optical light source module and can perform closed-loop tests by using both modules,and can also work individually.
WY-4002Optical Multi-Meter
WY-4002 handheld optical multi meter
integrates the functions of an intelligent optical power meter module and of a highly stable light source module in one unit which can perform closed-loop tests by incorporating both modules.
