The CT-88 multi-function cable tester features a sturdy housing, compact design, powerful functions, and ease of use, making it an excellent aid for installation, commissioning, testing, and maintenance of various low-voltage electrical systems. It supports 16 types of cables with plugs, including , powerCON, SPEAKON, XLR, DIN, , BNC, 3.5 jack, 6.35 jack, RJ45, and RJ11, as well as cables in conduit (or wall). It can also detect continuity, misalignment, and breaks. It includes a built-in audio signal generator and audio power amplifier, allowing you to easily test the connection and operation of your entire audio system, quickly locating faults. Hign-concerned Chemical:None Type:Other Color: Black Material: Metal Package Contents: 1 * CT78 tester (without 2 x 9V batteries) 1 * Data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.