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Features:
Parts Lits:- IC CMOS CD4066
- Transistor BC148
- Resistance 330 Ohm 4x
- Resistance to 180 KOhm 4x
- Four pairs optical multi-color LED
- Small buzzer/bell 6-15 volt
Water Level Indicator in Detail
- Power Supply 6 - 15 volts
- Measuring four different levels
- To give voice warning about filling or emptying the reservoir, "exactly according to the delicate"
- Very small and components are cheap and available
- Transistor BC148
- Resistance 330 Ohm 4x
- Resistance to 180 KOhm 4x
- Four pairs optical multi-color LED
- Small buzzer/bell 6-15 volt
Water Level Indicator in Detail
can i use bc548 instead of bc148?
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