Automatic school bell timer
Details
| Title | Automatic school bell timer |
| Author | Fact Electronics |
| Duration | 0:17 |
| File Format | MP3 / MP4 |
| Original URL | https://youtube.com/watch?v=48s4GhrNw_M |
Description
Automatic school bell timer without man power, programmable Timer 8886124442 www.factelectronics.com
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