Contact Us


8194 SW Durham Rd.
Tigard, OR 97224
Phone: (503) 746-5354
Fax: (503) 747-3625

Monday – Friday 9:00am – 6:00pm
Closed Saturday/Sunday

8194 SW Durham Rd
Tigard, OR, 97224
United States



Klein K-1



  • Fast and Sensitive
  • Contact Measurement
  • CRT Measurement Device
  • FFT Flickermeter
  • Comes with Klein Carrying Case, Tripod, Install Disc, and Certificate of Calibration

the ultimate Crt solution

The Klein K-1 tri-stimulus CIE Colorimeter Probe is designed to be the best colorimeter for CRT measurement in sensitivity, stability, and speed. The K-1's simple optics let it take in a large amount of light, which has made it popular as an intensity and flicker meter. It attaches directly to a PC, and runs with the companion PC program. Whether a desktop or a laptop is used, the Klein measurement application is in control and many additional features are available. K-1's are available with either USB or RS-232.


Like all Klein colorimeters, the K-1 is ruggedly constructed with high impact plastic and durable rubber. The K-1’s auto ranging is solid state, and the housing is impact resistant to hold up to the 24 hours a day, 7 days a week usage that display manufacturers require. The K-1’s compact size and light weight make transportation convenient. It is also fitted with a universal tripod mount for easy positioning and integration into workflows. 



For maximum accuracy, not only is the f1’ of Y critical, but the accuracy of X and Z as well. Each diode has specially layered absorption filters designed for maximum color accuracy. Klein colorimeters are also rigorously tested to ensure that each device is thermally stable with an operating temperature range of 15-35 C. 


The Klein K-1 also functions as an FFT (Fast Fourier Transform) flicker meter. The probe measures and integrates Y data in the head, streams in real time to the PC, and then the FFT is performed. The Klein K-1 can measure regular flicker between 1-150Hz. Multiple methods for displaying flicker data including JEITA, VESA, and contrast methods are selectable in the software. The Klein K-1 can be used to analyze any luminance source, including the common refresh-rate flicker in monitors, and random flashes caused by the transmission of current variations through solid state devices (LEDs). All flicker information can be logged and reported with Klein Chromasurf.