The PR-880 is designed for flawless precision and exceptional ease of use. Every function including multiple-mirror aperture positioning, dual filter wheels, detector zero, automatic internal calibra-tion and viewing system shutters are automated with precise motorized controls.

The PR-524 is the next generation in portable, hand-held photometry. It combines illuminance and luminance measurement capabilities with cutting edge technology by featuring a 1.5" x 2.3" back-lit touch screen display, USB interface, Secure Digital (SD) card slot for measurement storage, multiple measuring head capability and rechargeable Li battery.

It features a backlit touch- screen LCD display, USB interface, Secure Digital (SD) card, rechargeable lithium-ion battery.and it’s automatically syncs to non-DC signals.