Mountain bike speedometer with blue luminous

Product description:
★ 28 major functions ★ Blue luminous ★ Shandong SD-558A code table
Model: SD-558A
Material: Engineering plastics, LCD display, electronic components, etc.
Display: Double row and four window display (pictured)
Size: Product size 9 * 4.5 * 1.5CM; display size 7.3 * 1.7CM; line length is about 82CM
Power: 1 CR2032 button battery (inclusive)
Packing: Color box elevator
Annex: A copy of the original Chinese manual
The main function:
● Dynamic display of mileage, riding time, real-time speed, travel time, current time, current date;
● Query speed, average speed, total driving time, total mileage, current temperature at any time;
● With luminous function, using high-brightness cold light source, you can check the information at night at a glance (17: 00-8: 00 in the morning, press any key to turn on the backlight, it will automatically extinguish after about 4 seconds. bright);
● With metric / imperial unit selection, suitable for different users at home and abroad;
● Vehicle refueling / maintenance tips to ensure that your car has good performance and life;
● With 12/24 hour system, Celsius / Fahrenheit temperature unit selection, perpetual calendar function, let you travel more sure;
● With a stopwatch function, allowing you to accurately grasp the game information;
● With speeding reminder function to make your driving safer;
● Wide range of application, suitable for use on 4 "-40" bicycles / electric vehicles, even motorcycles;
● Speed comparison indication, keep track of speed changes at any time;
● Using sensor, stable performance, accurate speed, ultra wide working temperature;
● Ambient temperature display, clock function;
● Automatic standby function

● Fashion exterior design, rainproof design, easy to wipe, easy to disassemble;