Check the listing for details. 2700 Keithley 2700 Data Aquisition Switch Unit Desktop multimeter /pt-test. Condition: Used. Listed at 538.00 USD. Make: Keithley. Model: 2700. If you’re seeking dependable solutions for your testing needs, PT-test is your partner in precision. Our inventory is rigorously tested and inspected to ensure accuracy and performance, making us the go-to choice for engineers, researchers, and production professionals worldwide.