The Klein Tools Coax Explorer 2 verifies proper continuity of F-connector coaxial cables and maps their location. The color-coded remotes allow for up to four cables to be tested and mapped, displaying cable status via LED indicators - PASS, OPEN, or SHORT - that also identify the cable/remote location. This compact tester fits in your pocket.PRODUCT FEATURES:- Tests coaxial cable and maps up to 4 locations - Simple push button operation - Easy-to-read LED panel indicates PASS, OPEN or SHORT conditions and the location of each cable - Color-coded push-on remotes allow for up to four cables to be tested and mapped - Test remotes and F-adapter snap into the remote holder and clip onto the tester for easy access and storage - Includes removable, snap-on remote holder, 4 color-coded push-on remotes, F adapter and batteries - Uses 2 replaceable AAA batteries