VT56 Tire Tread Depth Gauge Easy grip wand with protective rubber jacket. Tread depth trigger activation button. Built-in gauge pin storage compartment with quick release button. Power LED indicator. RJ45 connector cable, no Bluetooth pairing is required. Print results to show customer via VT56 optional thermal printer. Quickly captures 3 tire measurements (inner, center, outer). Measures with an accuracy of +/-1% + 0.0012 inches (0.03 mm). Vibrate and sound alerts indicate successful measurement. Green, yellow and red color codes on VT56 tool screen indicate wear against the threshold. Measures 4 to 7 wheels per vehicle. No battery needed. Connects to the VT56 via RJ pin connector. Automatic calibration checks before every use TD01-0000P No -