Sealey VS0564 Digital Tyre Tread Depth Gauge Diagnostic Tool LCD Display. This tool features a tough composite sliding gauge with 10mm digits displayed on an LCD screen for easy reading. It offers both metric and imperial calibration with a conversion feature between the two. The range is 0-25mm (0-1 inch). A zero setting control allows for comparative measurement. Model No. VS0564. Weight: 0.05kg. Accuracy: ±0.02mm (0.001 inch). Battery: LR44 - 1.5V (supplied). Nett Weight: 0.04kg.