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Relay 1 Channel 5V High-Low Trigger Relay
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1 Channel 5V Relay Module Board Shield for Arduino with Optocoupler Support High and Low Level Trigger
Maximum load: AC 250V/10A, DC 30V/10A
SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA
The module voltage 5V
The module can be set high or low triggered by jumper
HC-SR501 Adjust IR Pyroelectric PIR Motion Sensor
In-Stock
HC-SR501 Pyroelectric Infrared PIR Motion Sensor Modules for Microcontrollers

automatic sensor:when enter the sensor,output range is high,when people leave the sensor, range of the automatic off, output low
temperature compensation,Blockade time: 0.25 seconds