Optical Multimeter integrates both an optical power meter module and an optical light source module and can perform closed-loop tests by using both modules but work individually. It is specifically designed for technical support personnel to test a variety of instruments with a single meter and thus satisfy the user by providing a choice of greater convenience and more advantages. Welcome to our store. Contact us at sales@fiberinthebox.com or Live Chat with us. Buy other optical fiber products on Fiberinthebox. Save your money & time right now!