C51 4 Bits LED Digital Electronic Clock AT89C2051 C51 Production Suite DIY Kit

Specification: AT89C2051-based of four electronic clock kit Kit Model: YSZ-4 Supply voltage: 3V-6V PCB Size: 52mm * wide 42mm Functions: 1. Seconds correction (for precise School) 2. Switch to every minute independent display interface 3. whole point of time (8-20 o\'clock chime can be turned off) 4. Two alarm settings (you can turn off the alarm function) Features: 0.56 inch special red digital clock for display Import AT89C2051 for master chip 1.2mm thick PCB made from military grade FR-4 board Accurate travel time, travel time error range error -1 to +1 seconds every 24 hours Package Included: 1 x AT89C2051 Digital 4 Bits Electronic Clock Electronic Component Suite DIY Kit Instructions/schematic are NOT included. We don't provide technical assistance please make sure that you are familiar with the product before purchasing.