​Features:Large LCD displayZero setting at any positionMetric/ Inch system interchangeManual power on/ offThere is scale on the stretch poleSuitable for tread depth, brake shoe and pad wearRange: 0-25.4 mm/ 0-1 inchWorking Temp: 0-40 ℃Size: approx. 4.5" x 2.4" (as picture shows, please allow 0.5-1cm error due to manual measurement)Note:Keep the gauge clear.No water oil on bar.Remove battery when not used for long periods.Please kindly note that this gauge can not read your tread depth in 32nds.How to use:Insert battery in, "+" pole upwardSwitch ONPut base on flat surface and press bar downwardSet ZEROPut gauge on tyre, hold stable and press bar tip into tyre profileRead profile depth value directlySwitch OFF or continuePackage included: 1 x Digital Tyre Tread Depth Gauge (Battery not included)No Retail Box. Packed Safely in Bubble Bag.