1、Clear Display: Equipped with green LED for 4 digit display, the 0.56in display module ensures a clear viewing on data. 2、Digital Tubes: 7 segment and decimal design enables a wide range, and each bit has a radix point for easy calculating. 3、Practical Use: Allows for broad application on various machine and equipment for better control and simpler operation. 4、Good Material: Processed with high quality PCB with accurate wiring and TM1637 drive chip, works with good stability. 5、Easy to Install: Comes with 2 pin to connect to digital I O, the lightweight and small digit board is quick to install. 1 x Digital Tube Display Module1 x Pin Header Item Type: Digital Tube Display ModuleMaterial: PCB BoardFunction: LED Digital DisplayDigits: 4 digit 7 segment decimal. Connection Module: 2 pins to digital I O. Library Usage: TM 1637.hDriver IC: TM1637Voltage: 5VColour: Green