The Pritchard Tele/Micro Photometer, still the proven leader in precision photometric/colorimetric light measuring instruments after more than three decades, is known for it's superior performance, high sensitivity and maximum versatility in the lab or in the field. It features  the patented Pritchard Optical System with built in attenuators, polarizers, colorimetry filters and field apertures interchangeable from 2 arc minutes to 3 degrees. Many special apertures are also available.

The PR-1980A also combines five dynamic features no other light measuring system does- our patented** AutoComp and AutoRange and AutoZero features, detector overload protection circuit and internal calibration verification. This unique combination virtually eliminates human error and manual computations while maintaining a precise, error-free direct readout.

** US. Patent 3,818,198

We've made it easier to get data from the PR-1980A into the computer environment.

We now offer an optional Universal Serial Bus (USB) connectivity. This feature can be ordered with a new instrument, or retrofitted to existing instruments (must be returned to factory for retrofitting).

The USB enables all the capabilities of the BCD and more. The customer has a choice of ordering USB, BCD or both. Information returned from the USB bus is the DPM reading, exponent and sign, and CIE filter turret position.

We're also including a software installation CD, and fully documented sample software source code in C++, Visual Basic and LabView to make it easy for user integration.