Scope: bicycles， electric cars， motorcycles.Large screen design， wide operating temperature! Imported sensor!Bright white display， dual-line four-window display， boxed. Incidental Chinese manual code table using a 2032 coin cellNote: You can use the car needs wheel diameter 10.00CM-99.99CM (ie， 4-inch to 40-inch Car applicable) [Main Features]-The code table at night bright white display， high brightness， light average， soft light， in the professional fleet have a wider impact， high cost;- Two-line four window displays for easy viewing data without frequent adjustment button;- Easy to install， easy setup; meter separation design， they can always detach carry.- Table head can be rotated for easy installation of the horizontal / vertical put; [Main features]- Dynamic display mileage， ride time， real speed， travel time， calories， current time， current date;- always check the maximum speed， average speed， total driving time， driving total mileage， current temperature， the car， the wheels revolutions per minute;- With luminous function， using high-grade high-brightness cold light source， so you ride at night query data at a glance;- a metric / imperial units selected for different users at home and abroad using the hobby;- Low battery tips so that you keep abreast of the work of the code table;- vehicle refueling / maintenance tips to protect your car has the best performance and life;- with 12/24 hour clock， Celsius / Fahrenheit temperature unit selection， calendar feature that allows you to travel more to grasp;- a stopwatch function， allowing you to accurately grasp the Contest;- a speeding alert feature that lets you driving safer;- Wide range of applications， suitable for 4 "-40" bicycle / electric cars， motorcycles and even use;- deceleration dynamic instructions， to keep the speed change position;- imported sensor， stable performance， speed， accuracy， wide operating temperature;- Ambient temperature display， clock function;- Auto power off function- Stylish design outside light， water proof design， portable， easy to disassemble;