REES52 6 Bits DIY Digital Electronic Clock Kit AT89C2051 Chip Alarm Clock Kit Soldering Practice Learning Kits Educational Electronic Hobby Kit

Description: At89c2051-based 6 bits electronic clock kit supply voltage:Dc 7v - 12v(typical applications is 9v) pcb size:92x49mm feature: Import at89c2051 for master chip 6 functions: Clock, time set, alarm set, countdown timer, stopwatch and counter. Accurate travel time, travel time error range error -1 to +1 second package included: 1 x 6 bits clock kits.