Esd-safe system 373 Tri trinocular stereo-zoom microscope specifically designed for training or documentation purposes. 23mm optics system and nearly 8 inch working distance (with used with a 0.5x reducing lens). TRU trinocular feature allows the user to simultaneously view images on screen and through the eyepieces. Esd-safe coating makes this microscope ideal for use in static-sensitive environments where Electrostatic discharges can prove fatal for electronic components. Models include 10mm static grounding cables, metal boom stand bushings an metal pads on the microscope base. The body and stand are powder-coated with a metal-laced paint that measures 10^5 ω/sq. (Static dissipative). since the surfaces are no longer insulative, triboelectric charging results in drastically lower voltages, especially since any charge (under 50 Volts) is uniformly distributed throughout the entire surface of the microscope. ESD- safe, dimmable led-high output ring light (18W, 5800 foot-candles at 4.5 inch working distance, 80 LED display, 6000⁰k color temperature) and USB 3.0 camera included.