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Smoke Detector Digital Sensor BM22S2021-1

US$4.70 (Excl. Tax)

In stock

Quantity

35 pieces

Product ID

BM22S2021-1

DESCRIPTION

The BM22S2021-1 is a smoke detector sensor with two channels (LED transmitters) to detect white smoke and black smoke. Each sensor has been calibrated at the factory. When the concentration of smoke exceeds the default calibration, the voltage output of the alarm pin (pin 5) changes from low level to high level (default). It is easy to make a gas detector by supplying power to this sensor and monitoring the alarm output pin.

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	1-9	-	US$4.70
	10+	5%	US$4.47

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PRODUCT FEATURES

Operating voltage: 3.0V to 5.0V
UART interface, 9600 baud rate
Configurable alarm threshold (you can set different thresholds for white smoke and black smoke)
UART interface, 9600 baud rate
Configurable alarm status pin output level (active high or active low)
Standby current < 15uA @3V (wake up every 8 seconds)
Automatic fault detection
Factory calibration, good consistency

PIN DESCRIPTION