1.Description: It is a Clock Display Module which can display time.It has a built-in battery, so it can keep the parameters accurate even if the power is removed. 2.Features: 1>.Display time 2>.Support power-down parameter memory function 3>.Verifiable parameters 3.Parameters: 1>.Product name: Clock Display Module 2>.Work Voltage:DC 5.0V 3>.Display:0.8inch 4Bit 4>.Clock IC:DS3231 5>.Display color:Red 6>.Work Temperature:-40℃~80℃ 7>.Work Humidity:10%~90%RH 8>.Display Size:72*26*13.2mm 4.Set Function: 1>.Default display time by Hour:Minute. 2>.Press SET button enter into set mode or switch set parameters. 3>.The UP button just can increase parameter value at set mode. 4>.The 1st press Down button to set hour and flashing.Then press add button to change value. 5>.The 2nd press Down button to set minute and flashing.Then press UP button to change value. 6>.The 3rd press Down button to set second and flashing.Then press UP button to change value. 7>.The 4th press Down button to save set parameters and return to normal display mode. 5.Application: 1>.Car decoration 2>.Home application 3>.Working hours reminder 6.Package: 1>.1pc Clock Display Module