Cal lab performance you can take anywhere
Cal lab performance in the field The PM 6685 frequency counter from Fluke brings cal lab accuracy to field measurements. With 10 digits per second, plus overflow (displays 11th and 12th digits), it delivers high-accuracy measurements instantly. The
PM 6685 is easy to use, compact and - most important of all - it has today's smartest input triggering for frequency measurements. The battery option for the PM 6685 maintains oven stability for 20 hours, giving you instant oven performance even after long transportation.
PM6685R - Today’s most accurate frequency counter
The PM 6685R from Fluke is the most accurate portable frequency counter on the market. It offers all the functionality of the PM 6685, plus the stability and accuracy of a built-in Rubidium atomic reference. High stability, high accuracy and short warm-up times make this instrument ideal for high accuracy calibration procedures outside the cal lab environment, such as in base station transmitters of large telecommunication networks like GSM. The short warm-up time means that the PM 6685R is ready for use within minutes after field transport or a change of location inside a building.
Additional features of PM 6685R