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The potentiometer named "A" is used to regulate the amplifying times of audio signal
Wide operating voltage range: 2
The MC95 combines rugged durability
The memory can be written and erased byte by byte
suitable for 4 x AA batteries
Soil Moisture Sensor character The potentiometer named "A" isA soil moisture sensor can read the amount of moisture present in the soil surrounding it. It is ideal for monitoring garden, or your plant's water level. This is a must have tool for a connected garden. This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly
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