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Lesson 1_What Is Infrared?

Lesson 1_What Is Infrared?

Lesson 2_Principle of Passive Infrared Sensor (PIR)

Lesson 2_Principle of Passive Infrared Sensor (PIR)

Lesson 3_Principle of Active Infrared Detector

Lesson 3_Principle of Active Infrared Detector

Lesson 4_Why Quad Beams Sensor Can Be Used Farther and More Stable

Lesson 4_Why Quad Beams Sensor Can Be Used Farther and More Stable

Lesson 5_What is Single/ Four Channel Infrared Beam Sensor?

Lesson 5_What is Single/ Four Channel Infrared Beam Sensor?

Lesson.6_The Principle of Magnetic Switch

Lesson.6_The Principle of Magnetic Switch

Lesson 7_The priciple of glass sensor

Lesson 7_The priciple of glass sensor

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