Our M18™ 500 GB Control Hub provides the most versatile pipeline inspection experience. The control hub is compatible with all Milwaukee® Modular Pipeline Inspection reels, it easily swaps between reel sizes and wirelessly connects to the M18™ Wireless Monitor or a mobile device for viewing. Equipped with 500 GB of internal memory, you're able to store and organize recordings on board and seamlessly share wirelessly to a mobile device or directly to a USB drive. The M18™ 500 GB Control Hub features a built-in transmitter that energizes the push cable for line trace capability, making it easier to locate the camera head when in a sewer line. The control hub is compatible with ONE-KEY™ Technology, giving you the ability to track the tool's location, manage it in inventory and lock the tool out to help protect your investment. Milwaukee® Control Hub, Compact, Series: M18™, 200 ft Push Rod Length, Battery, M18™ Wireless Monitor, 5 Ah Battery, REDLITHIUM™ Battery