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购买 IR Sensor LED

$6.13

$12.78

DC 5V 12V 24V 6A Automatic Adjust PIR Motion Sensor Switch IR Infrared Detector Light Switch For LED

Aliexpress

折扣 52%

$6.13

$12.78

DC 5V 12V 24V 6A Automatic Adjust PIR Motion Sensor Switch IR Infrared Detector Light Switch For LED

Aliexpress

$5.13

$5.38

AC 180V-220V LED PIR Motion Sensor Switch IR Infrared Human Induction Detect Sensor Indoor Outdoor

Aliexpress

$5.13

$5.38

AC 180V-220V LED PIR Motion Sensor Switch IR Infrared Human Induction Detect Sensor Indoor Outdoor

Aliexpress

$2.26

$2.32

AC 85V-265V LED PIR Infrared Detector IR Infrared Motion Sensor Switch Adjustable Time Delay Switch

Aliexpress

$2.26

$2.32

AC 85V-265V LED PIR Infrared Detector IR Infrared Motion Sensor Switch Adjustable Time Delay Switch

Aliexpress

$4.04

$8.35

DC 5V 12V 24V Adjustable PIR Infrared Human Motion Sensor USB DC Plug Switch For LED Light Strip

Aliexpress

折扣 51%

$4.04

$8.35

DC 5V 12V 24V Adjustable PIR Infrared Human Motion Sensor USB DC Plug Switch For LED Light Strip

Aliexpress

$3.92

$6.65

AC 110V-220V LED PIR Infrared Detector IR Infrared Motion Sensor Switch ON/Off Wall Switch

Aliexpress

折扣 41%

$3.92

$6.65

AC 110V-220V LED PIR Infrared Detector IR Infrared Motion Sensor Switch ON/Off Wall Switch

Aliexpress

$11.44

$17.88

For IR Break Beam Sensor 5mm Leds Counting Module Splitter Through-Beam Photoelectric Switch

Aliexpress

Free shipping

折扣 36%

$11.44

$17.88

For IR Break Beam Sensor 5mm Leds Counting Module Splitter Through-Beam Photoelectric Switch

Aliexpress

$1.62

$2.49

DC3.7V 5V 12V 24V Automatic Sensor Light Switch LED PIR Infrared Motion Sensor Detection Light

Aliexpress

Free shipping

折扣 34%

$1.62

$2.49

DC3.7V 5V 12V 24V Automatic Sensor Light Switch LED PIR Infrared Motion Sensor Detection Light

Aliexpress

$1.55

$2.09

DC12V 24V Motion Sensor Switch Hand Sweep IR Sensor Switch ON/OFF DIY LED Light Human Infrared

Aliexpress

折扣 25%

$1.55

$2.09

DC12V 24V Motion Sensor Switch Hand Sweep IR Sensor Switch ON/OFF DIY LED Light Human Infrared

Aliexpress

$15.99

$34.32

Smart Sensor Night Light Led Infrared Light Sensor Night Light Typec Rechargeable Magnetic Wireless Sensor Night Light

LightInTheBox

折扣 53%

$15.99

$34.32

Smart Sensor Night Light Led Infrared Light Sensor Night Light Typec Rechargeable Magnetic Wireless Sensor Night Light

LightInTheBox

$5.33

$11.00

1Pc AC110-240V LED Automatic Human Body Infrared IR Sensor Lamp Holder EU/US Stype LED Bulb Light

Aliexpress

折扣 51%

$5.33

$11.00

1Pc AC110-240V LED Automatic Human Body Infrared IR Sensor Lamp Holder EU/US Stype LED Bulb Light

Aliexpress

$5.43

$10.76

5Pcs For IR Break Beam Sensor Leds Counting Module Split Distance Sensor DC 3-5V For

Aliexpress

折扣 49%

$5.43

$10.76

5Pcs For IR Break Beam Sensor Leds Counting Module Split Distance Sensor DC 3-5V For

Aliexpress

$0.63

$0.84

20Pcs LED 3mm 5mm 940Nm IR Infrared Emitting Receiving Diode Round Tube Light Flame Sensor For Smart

AliExpress

折扣 24%

$0.63

$0.84

20Pcs LED 3mm 5mm 940Nm IR Infrared Emitting Receiving Diode Round Tube Light Flame Sensor For Smart

AliExpress

$2.16

$3.86

DC 6V 12V 24V 5A PIR Motion Sensor Switch Mini PIR Infrared IR Sensor Detector Switch Module For LED

Aliexpress

折扣 44%

$2.16

$3.86

DC 6V 12V 24V 5A PIR Motion Sensor Switch Mini PIR Infrared IR Sensor Detector Switch Module For LED

Aliexpress

$4.73

$9.97

5Pair For IR Break Beam Sensor Leds Counting Module Split Distance Sensor 20108mm Infrared Beam

Aliexpress

折扣 52%

$4.73

$9.97

5Pair For IR Break Beam Sensor Leds Counting Module Split Distance Sensor 20108mm Infrared Beam

Aliexpress

$3.52

$4.00

DC12V 24V New Lead-Free Sensing Module 8A Pir Motion/ IR Hand Wave/Touch Sensor Module For LED

Aliexpress

Free shipping

折扣 12%

$3.52

$4.00

DC12V 24V New Lead-Free Sensing Module 8A Pir Motion/ IR Hand Wave/Touch Sensor Module For LED

Aliexpress

$5.21

$10.42

Dual PIR Sensor Switch 5A 12V-24V IR Motion Sensor Bedside Lamp Smart LED For Beddelay 30 Seconds

Aliexpress

Free shipping

折扣 50%

$5.21

$10.42

Dual PIR Sensor Switch 5A 12V-24V IR Motion Sensor Bedside Lamp Smart LED For Beddelay 30 Seconds

Aliexpress

$3.26

$6.48

5-24V DC LED Strip Light Motion Sensor Switch LED PIR Infrared Detector Adjustable Timer Delay IR

Aliexpress

折扣 49%

$3.26

$6.48

5-24V DC LED Strip Light Motion Sensor Switch LED PIR Infrared Detector Adjustable Timer Delay IR

Aliexpress

$0.69

$0.82

Infrared Motion Sensor Automatic Detector Module PIR Sensor For LED Strip 5V /12V /24V Distance 0

AliExpress

折扣 15%

$0.69

$0.82

Infrared Motion Sensor Automatic Detector Module PIR Sensor For LED Strip 5V /12V /24V Distance 0

AliExpress

$13.85

$15.39

IR 48 LED IR Security Lights Infrared Infrared Night Vision CCTV Infrared Flood Lights For Security CCTV Camera

Amazon.com

折扣 10%

$13.85

$15.39

IR 48 LED IR Security Lights Infrared Infrared Night Vision CCTV Infrared Flood Lights For Security CCTV Camera

Amazon.com

$3.31

$10.05

LED Motion Sensor 220V 110V Automatic PIR Infrared Detector 180 Degree Rotating Outdoor Timer Light

Aliexpress

折扣 67%

$3.31

$10.05

LED Motion Sensor 220V 110V Automatic PIR Infrared Detector 180 Degree Rotating Outdoor Timer Light

Aliexpress

$1.04

$2.36

Automatic Human Body Infrared IR Sensor Lamp Holder LED Bulb Light E27 Base PIR Motion Detector Wall

Aliexpress

折扣 55%

$1.04

$2.36

Automatic Human Body Infrared IR Sensor Lamp Holder LED Bulb Light E27 Base PIR Motion Detector Wall

Aliexpress

$12.45

$24.66

5Pcs IR=Break Beam Sensor Leds Counting Module Distance Sensor Split 5mm Through-Beam Photoelectric

AliExpress

Free shipping

折扣 49%

$12.45

$24.66

5Pcs IR=Break Beam Sensor Leds Counting Module Distance Sensor Split 5mm Through-Beam Photoelectric

AliExpress

$195.61

L1420-IR NEWTON LABS - Sensors & Switches & LED Light Array Supplies

Radwell.com

$195.61

L1420-IR NEWTON LABS - Sensors & Switches & LED Light Array Supplies

Radwell.com

$6.12

$13.60

5Pcs FOR IR Break Beam Sensor Leds Counting Module Split 3mm Photoelectric Switch DC3-5V 30/50/100cm

AliExpress

折扣 55%

$6.12

$13.60

5Pcs FOR IR Break Beam Sensor Leds Counting Module Split 3mm Photoelectric Switch DC3-5V 30/50/100cm

AliExpress

$3.79

AC 220V-240V LED PIR Infrared Detector IR Motion Sensor Ceiling Embedded Dual Induction Sensor

Aliexpress

$3.79

AC 220V-240V LED PIR Infrared Detector IR Motion Sensor Ceiling Embedded Dual Induction Sensor

Aliexpress

$0.36

$0.69

1-10Pcs QRE1113 IR LED Infrared Reflection Sensor Module Capacitor Discharge Circuit Breaker Board

AliExpress

Free shipping

折扣 47%

$0.36

$0.69

1-10Pcs QRE1113 IR LED Infrared Reflection Sensor Module Capacitor Discharge Circuit Breaker Board

AliExpress

$4.81

$8.05

5Pcs For IR Break Beam Sensor DC 3-5V High-Speed Detection Leds Counting Module Split Distance

Aliexpress

折扣 40%

$4.81

$8.05

5Pcs For IR Break Beam Sensor DC 3-5V High-Speed Detection Leds Counting Module Split Distance

Aliexpress

$1.95

$2.29

12V/24V IR Hand Sweep Sensor Switch Detector 5A Hand Wave Smart Motion Sensor Light Switch For LED

Aliexpress

Free shipping

折扣 14%

$1.95

$2.29

12V/24V IR Hand Sweep Sensor Switch Detector 5A Hand Wave Smart Motion Sensor Light Switch For LED

Aliexpress

$6.83

$13.66

COLOROCK 1Pc Wall Light Switch Infrare IR Sensor No Need Touch EU UK 220V 110V Glass Screen Panel

Aliexpress

折扣 50%

$6.83

$13.66

COLOROCK 1Pc Wall Light Switch Infrare IR Sensor No Need Touch EU UK 220V 110V Glass Screen Panel

Aliexpress

$23.87

$24.20

6 Leds 940Nm And 850Nm IR Distance IR Illuminator IR Infrared Fill Light Night-Vision Fill Light For

Aliexpress

Free shipping

$23.87

$24.20

6 Leds 940Nm And 850Nm IR Distance IR Illuminator IR Infrared Fill Light Night-Vision Fill Light For

Aliexpress

IR Infrared Spectroscopy | Introduction and Principle

10:45

YouTubeBaayo

IR Infrared Spectroscopy | Introduction and Principle

IR Spectroscopy basic introduction and principle IR spectroscopy is the spectroscopic technique which uses the Infrared light and studies its interaction with the molecules. The spectra generated can give a lot of information about the molecule, especially about the functional groups associated. The bonds between the atom vibrate and posses ...

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