The Passive Infrared Sensor (PIR) sensor module is used for motion detection. It is often referred to as using "PIR", "Pyroelectric", "Passive Infrared" and "IR Motion" sensors. The module has an on-board pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It is used to sense the movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically activated lighting systems.

Specifications:- 

• Color: White + Green OR  White + Blue
• Infrared Sensor with Control Circuit Board
• The Sensitivity and Holding Time Can be Adjusted
• Working Voltage Range: DC 4.5V- 20V
• Current Drain: <60uA
• Detection Range: <140°
• Voltage Output: High/Low-level Signal: 3.3V TTL output
• Detection Distance: 3 to 7m (can be adjusted)
• Delay Time: 5 to 200s (Can be Adjusted, Default 5s +/- 3%)
• Blockade time: 2.5s (Default)
• Work temperature: -20-+80°C
• Dimension: 3.2cm x 2.4cm x 1.8cm (Approx)
• Sensitive Setting: Turn to the Right, Distance Increases (About 7M); Turn to the Left, Distance Decreases (About 3M)
• Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S).