The CA 6161 comes in a yellow construction case. It has an illuminated touchscreen that can also be operated with gloves. The multilingual operator interface can display numerous help screens throughout use to guide the user through images, text and icons. It communicates via WLAN connection and via the two USB-A ports. The CA 6161 installation tester has four express command keys so that you can conveniently operate the following functions directly from any position: print a measurement on the sticker printer, call up help for the current function, return to the main screen and return to the previous menu. Jumping back directly to the main screen is particularly useful, no matter what level of the user interface you are currently on. The CA 6161 stores up to 100,000 tests. A PC software transmits the test data via WLAN or USB and is used for analysis and reporting. The embedded software can be updated easily in a few minutes using a USB stick.