Jonard Tools Mini Optical Power Meter is designed to measure the absolute optical power and relative power loss in fiber optic cables. The power meter features a built-in 2mW visual fault locator (VFL) and network cable tester/remote. It offers a measurement range of -70~+6, -70~+10, -50~+26 and a wavelength range of 800 to 1700 nm. It can be used together with an optical laser source to measure the loss of fiber, cable, and other. STD800 series mini Optical Power Meter and red light all-in-one machine series are controlled by single-chip microprocessor but multifunction. It can be well protected by using embedded detector and laser. The whole machine has automatic shutdown function, three red light modes, backlight display.