Keyes PIR Motion Sensor Module HC-SR501

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors.

Distance and Trigger Speed can be dialed with two Potis.

Feature

• Input Voltage: DC 4.5-20V
• Static current: 50uA
• Sentry Angle:< 100 degree
• Lens Size:Diameter: 23mm(Default)
• Dimensions: 33mm * 26mm* 25mm

Please check out this homepage for a very detailed tutorial and how-to-use for your Arduino: ElecFreaks Wiki

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