Model S350 Optometer

The S350 provides both radiometric/photometric and log measurements. Measurement modes are selected with a front panel switch. As a radiometer, the S350 makes power and energy measurements. A front panel "Multiplier" control provides seven full-scale decades of power and five full-scale decades of energy measurement capability.

Data is displayed on a large LCD display. Four calibration channels are selectable from the front panel. The S350 can be powered directly from an AC line or, for portability, from an internal rechargeable battery pack. It accommodates all of UDT sensor heads and accessories.