Keithley Instruments Frequency & Time Standards

Keithley Instruments built counter timers such as the 775 Programmable Counter Timer, 775A Programmable Counter/Timer, and 776R Programmable Counter Timer for frequency measurement and timing checks in labs and production test. GS Test Equipment stocks used and refurbished frequency and time standards from Keysight/Agilent, Symmetricom, and Spirent NetCom, tested before shipping and available to buy or rent, plus buys, repairs, and calibrates this equipment, so request a quote.