The OL730D is a completely microprocessor controlled, multi-functional radiometer/photometer which can be programmed to read directly in any user specified radiometric or photometric optical quantity. The OL730D is virtually ideal for all types of measurement and features high sensitivity, autoranging, autozeroing, highly accurate readout and range-to-range linearity, 4 1/2 digit (6 1/2 digit via computer) plus exponent display, user variable response time, an extemely large dynamic range and RS232 interface (IEEE-488 optical) for computer control.

It features several modes of operation depending on the type of amplification desired, is completely microprocssor controlled and can be programmed to read directly in any radiometric or photometric optical quantity. Though designed primarily for use with optical radiation detectors, the OL730D is a highly versatile instrument that can replace many types of amplifiers in one compact, easy-to-use unit.