The golden key encapsulates electronic components in modular injection molded parts, which solves the problem that PCB boards and breadboards cannot be used to solder circuits in the classroom. It has safety, reliability, flexibility, convenience and reusability. , Provides a guarantee for the school to improve the quality and efficiency of e-teaching and reduce teaching costs. No. Circuit name

1 Magnetic induction control circuit
2 Come to remind the "Welcome" device
3 Multi-sensor interchangeable alarm device
4 Automatic counting display experiment
5 Flag raising ceremony
6 Transistor status demonstration circuit
7 Change the lantern
8 Safe lock
9 Low voltage control high voltage circuit
10 Company executive security key
11 Strobe light
12 Oscillation sounding circuit
13 Music doorbell
14 Automatic displacement adjustment system
15 Infrared remote control car

Besides the main Aquarium Equipment that you need, we also carry aquarium accessories that help to maintain the daily function of an aquarium. Such as air stones that work with air pumps to generate a greater number of air bubbles evenly and continuously. Aquarium brass gang valve which also works with air pumps splitting and controlling air flows from one source.