Description: AT89C2051-based of four electronic clock kit Supply voltage: 3V ~ 6V PCB Size: 52 x 42mm
Function: Seconds correction (for precise School) Switch to every minute independent display interface whole point of time (8-20 o"clock chime can be turned off) Two alarm settings (you can turn off the alarm function)
Features: 1. 0.56 inch special red digital clock for display 2. Import AT89C2051 for master chip 3. 1.2mm thick PCB made from military grade FR-4 board 4. Accurate travel time, travel time error range error -1 to +1 seconds every 24 hours
Package include: 3x Electronic Clock DIY Kits
Note: This produce is DIY kits, not the end product! You need to have some electronic knowledge and ability. We don"t supply EN manuals.