Gps Digital Tube Code Meter Supports To Display Time, Temperature And Humidity, Current Speed Three Parameters. The Time Can Be Automatically Calibrated By Gps Or Set Manually, Supporting Both 12-Hour And 24-Hour Formats. Temperature And Humidity Parameters Can Be Set To Display Only The Temperature, Only Humidity, Temperature And Humidity Automatically Switch The Display.Gps Automatically Measures The Current Speed. Gps Automatically Measures The Current Vehicle Speed, And Can Be Set To Over-Speed Alarm. BDS Gps Digital Tube Code Table Instructions For Use: There Are 3 Functions In Total, Displaying Time, Displaying Temperature And Humidity, And Displaying Speed. Note: Due To Different Voltages, The Type-C Power Cord Cannot Be Plugged In While The Battery Is Connected. 1. After Powering On, The Time Display Page Will Be Entered By Default. If The Gps Does Not Receive A Signal, The Time Will Display 00: 00. Take It Outdoors And After Receiving The Gps Signal, The Speaker Will Emit A Sound And Automatically Adjust The Time. 2. On The Clock Display Page, Press The S2 Key To Switch To The Temperature And Humidity Display Interface. By Default, The Digital Tube Displays Temperature And Humidity In Turn Every 5 Seconds. Press The S3 Key To Return To The Clock Display Interface. 3. On The Temperature And Humidity Display Page, Press The S2 Key To Switch To The Speed Display Interface. If The Gps Does Not Receive A Signal, The Speed Will Display 000. You Need To Connect To The Gps Outdoors To See The Moving Speed. Press The S3 Key To Return To The Temperature And Humidity Display Interface. Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use size: about 71.4 x 25.6mm Material: PCB colour: As shown Package Contents: 1 x BDS GPS Digital Tube Code TableModule Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.