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Art. No. SM-103 Rain Sensing Module

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產品介紹

When raining, the rain water will provide a conductive path to the PCB

sensor tracks which will trip the amplifier circuit. The outputs of the

amplifier are given both in digital and analog forms. When rain water is

detected the LED will turn on until rain water is cleared of its PCB sensor

surface. Sensitivity of amplifier can be set by the on board VR

(variable resistor).

 

Applications:

 

 Rain warning, flood warning, water level sensing. bilge pump control, etc.

 

Specifications:

Operating voltage: 5V

Quiescent current: 4.5ma typ. (power LED on)

Max. current drain: 7.5ma (both LED on)

Output voltage: digital (0 and 1), analog (variable)

Sensitivity: VR adjustable

Output indicator: LED

 

Connections:

Vcc    +5V supply

GND: Negative supply

DO:   Digital output

AO:   Analog output



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