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$59.97
Sensorswitch Ceiling Motion Sensor, Passive Infrared PIR Occupancy Sensor, 360° Small Motion Detection, Indoor Use, Low Voltage, Standard Range
Amazon.com
98
Free shipping
$59.97
Sensorswitch Ceiling Motion Sensor, Passive Infrared PIR Occupancy Sensor, 360° Small Motion Detection, Indoor Use, Low Voltage, Standard Range
Amazon.com
98
$19.99
Motion Sensor Light Switch, IR Sensor Switch Door Activated Light Switch For Closet Light LED Strip Light And Under Cabinet Light With 12V JST Male
Amazon.com
$19.99
Motion Sensor Light Switch, IR Sensor Switch Door Activated Light Switch For Closet Light LED Strip Light And Under Cabinet Light With 12V JST Male
Amazon.com
$16.99
ELEGRP Matte Black Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$16.99
ELEGRP Matte Black Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$46.50
Sensorswitch Wall Mount Motion Sensor Switch, Passive Infrared Wall Switch And Occupancy Sensor And Dusk-To-Dawn Photocell, WSX Series, Single Relay
Amazon.com
34
Free shipping
$46.50
Sensorswitch Wall Mount Motion Sensor Switch, Passive Infrared Wall Switch And Occupancy Sensor And Dusk-To-Dawn Photocell, WSX Series, Single Relay
Amazon.com
34
$25.83
Leviton Motion Sensor Light Switch, Motion Activated, Auto-On/Auto-Off Or Manual-On, 2A, No Neutral Wire Required, Single Pole, DOS02-LW, White
Amazon.com
363
$25.83
Leviton Motion Sensor Light Switch, Motion Activated, Auto-On/Auto-Off Or Manual-On, 2A, No Neutral Wire Required, Single Pole, DOS02-LW, White
Amazon.com
363
$14.99
VST Motion Sensor Switch, IR Sensor Switch Door Activated Light Switch For Closet And Under Cabinet Lighting (DC 12/24V 3A)
Amazon.com
16
$14.99
VST Motion Sensor Switch, IR Sensor Switch Door Activated Light Switch For Closet And Under Cabinet Lighting (DC 12/24V 3A)
Amazon.com
16
$3.56
$24.41
Motion Detector, Motion Sensor Switch, 2Pcs PIR Infrared Motion Automatic Sensor Detector 12V 24V Automatic Sensor, Pir Sensor,Pir Motion Sensor
Temu US
折扣 85%
$3.56
$24.41
Motion Detector, Motion Sensor Switch, 2Pcs PIR Infrared Motion Automatic Sensor Detector 12V 24V Automatic Sensor, Pir Sensor,Pir Motion Sensor
Temu US
$17.99
RAYZEEK Occupancy Vacancy Motion Sensor Light Switch With On/Off Override, Single Pole PIR Infrared Motion Activated Wall Switch, Need Grounding
Amazon.com
55
$17.99
RAYZEEK Occupancy Vacancy Motion Sensor Light Switch With On/Off Override, Single Pole PIR Infrared Motion Activated Wall Switch, Need Grounding
Amazon.com
55
$22.98
Intermatic EK4236S Nightfox™ Stem & Swivel Mount Electronic Photocontrol - Reliable Light Sensing For Outdoor & Commercial HID And LED Fixtures -
Amazon.com
88
$22.98
Intermatic EK4236S Nightfox™ Stem & Swivel Mount Electronic Photocontrol - Reliable Light Sensing For Outdoor & Commercial HID And LED Fixtures -
Amazon.com
88
$22.95
Lutron Maestro Motion Sensor Light Switch Indoor For Bathroom, Garage, Laundry Room, Any Bulbs, Occupancy Vacancy Sensor, Single-Pole, MS-OPS2-WH,
Amazon.com
12 千+
$22.95
Lutron Maestro Motion Sensor Light Switch Indoor For Bathroom, Garage, Laundry Room, Any Bulbs, Occupancy Vacancy Sensor, Single-Pole, MS-OPS2-WH,
Amazon.com
12 千+
$72.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
1 千+
Free shipping
$72.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
1 千+
$109.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
3 千+
Free shipping
$109.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
3 千+
$16.14
ECOELER Ceiling Mount Motion Sensor, 360 Degree Occupancy Sensor Switch, 10-40 ft High Sensitive PIR Infrared Motion Activated Switch For CFL/LED/
Amazon.com
163
$16.14
ECOELER Ceiling Mount Motion Sensor, 360 Degree Occupancy Sensor Switch, 10-40 ft High Sensitive PIR Infrared Motion Activated Switch For CFL/LED/
Amazon.com
163
$14.98
J.LUMI YCA1050 PIR Motion Sensor Light Switch, 85-265V AC 2000W, Ceiling Mount Motion Sensor Ceiling Motion Sensor Switch, PIR Occupancy Sensor,
Amazon.com
667
$14.98
J.LUMI YCA1050 PIR Motion Sensor Light Switch, 85-265V AC 2000W, Ceiling Mount Motion Sensor Ceiling Motion Sensor Switch, PIR Occupancy Sensor,
Amazon.com
667
$27.99
ELEGRP Matte White Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$27.99
ELEGRP Matte White Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$12.49
RTNLIT 110-240V Infrared Motion Sensor Switch, Recessed PIR Ceiling Motion Sensor Detector Light Switch Adjustable 360 Degree
Amazon.com
$12.49
RTNLIT 110-240V Infrared Motion Sensor Switch, Recessed PIR Ceiling Motion Sensor Detector Light Switch Adjustable 360 Degree
Amazon.com
$8.59
Hiletgo Outdoor PIR DC 12V Automatic Infrared PIR Motion Sensor Switch For LED Flood Light
Amazon.com
226
$8.59
Hiletgo Outdoor PIR DC 12V Automatic Infrared PIR Motion Sensor Switch For LED Flood Light
Amazon.com
226
$17.89
TOPGREENER In Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, On/Off Override, 4A
Amazon.com
2 千+
$17.89
TOPGREENER In Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, On/Off Override, 4A
Amazon.com
2 千+
$39.99
PR01 12/24V Body Infrared PIR Motion Sensor Switch Control For LED Light
Kings Outdoor Lighting
$39.99
PR01 12/24V Body Infrared PIR Motion Sensor Switch Control For LED Light
Kings Outdoor Lighting
$16.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
5 千+
$16.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
5 千+
$13.48
PIR, IP65 Outdoor Infrared Motion Sensor, Home Lighting Switch With Time Setting, 120-140° Detection Range And 3-5m Sensing Distance, For Night
Amazon.com
$13.48
PIR, IP65 Outdoor Infrared Motion Sensor, Home Lighting Switch With Time Setting, 120-140° Detection Range And 3-5m Sensing Distance, For Night
Amazon.com
$37.99
Wothfav Motion Sensor Light Switch With Outlet, 2 Pack, PIR Infrared Motion Sensor Switch With 3 Adjustable Sensing Modes, Wireless Motion Sensor
Amazon.com
112
Free shipping
$37.99
Wothfav Motion Sensor Light Switch With Outlet, 2 Pack, PIR Infrared Motion Sensor Switch With 3 Adjustable Sensing Modes, Wireless Motion Sensor
Amazon.com
112
$3.61
$21.72
12V-24V Automatic Sensor Light Switch - LED PIR Infrared Motion Sensor, Pir Motion Sensor, Led Motion Sensor Light,Motion Light Sensor Outdoor
Temu US
折扣 83%
$3.61
$21.72
12V-24V Automatic Sensor Light Switch - LED PIR Infrared Motion Sensor, Pir Motion Sensor, Led Motion Sensor Light,Motion Light Sensor Outdoor
Temu US
$29.99
TOPGREENER In-Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, Wall Plate Included
Amazon.com
3 千+
$29.99
TOPGREENER In-Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, Wall Plate Included
Amazon.com
3 千+
$5.30
$41.75
12V-24V 8A Automatic Infrared PIR Motion Sensor Detector Switch For LED Light, Motion Detectors, 1Pc, Infrared Sensor Switches 12V,Security Gadgets
Temu US
79
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12V-24V 8A Automatic Infrared PIR Motion Sensor Detector Switch For LED Light, Motion Detectors, 1Pc, Infrared Sensor Switches 12V,Security Gadgets
Temu US
79
$2.58
$3.23
AC 110V-240V High Sensitivety Human 360 Degree PIR Infrared Motion Sensor Light Switch Ceiling
Aliexpress
折扣 20%
$2.58
$3.23
AC 110V-240V High Sensitivety Human 360 Degree PIR Infrared Motion Sensor Light Switch Ceiling
Aliexpress
$1.93
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PIR Infrared Body Sensor Detector Motion Sensor Light Switch Automatic Induction Switch For Ceiling
Aliexpress
折扣 50%
$1.93
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PIR Infrared Body Sensor Detector Motion Sensor Light Switch Automatic Induction Switch For Ceiling
Aliexpress
$146.77
Occupancy Motion Sensor Light Switch, Pir Infrared Motion Activated
eBay
Free shipping
$146.77
Occupancy Motion Sensor Light Switch, Pir Infrared Motion Activated
eBay
Free shipping
$1.63
$2.33
Motion Sensor Light Switch Outdoor AC 220V Automatic Infrared PIR Motion Sensor Switch With LED
Aliexpress
Free shipping
折扣 30%
$1.63
$2.33
Motion Sensor Light Switch Outdoor AC 220V Automatic Infrared PIR Motion Sensor Switch With LED
Aliexpress
Free shipping
$32.89
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Screwless Wall Switch, Light Almond (2-Pack)
Home Depot
25
Free shipping
$32.89
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Screwless Wall Switch, Light Almond (2-Pack)
Home Depot
25
$19.99
360 Degree Mini Infrared Motion Sensor Switch For Efficient PIR Detection
Evalm
$19.99
360 Degree Mini Infrared Motion Sensor Switch For Efficient PIR Detection
Evalm
$31.70
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Wall Switch, Matte Black (2-Pack)
Home Depot
25
Free shipping
$31.70
Single-Pole Occupancy Sensor, PIR Infrared Motion Activated Wall Switch, Matte Black (2-Pack)
Home Depot
25
$8.92
LED Motion Sensor Switch DC 12-24V 6A PIR Infrared Body Detect Timer Controller For Automatic Lighting Bulbs LED Strips, White | Harfington
harfington
$8.92
LED Motion Sensor Switch DC 12-24V 6A PIR Infrared Body Detect Timer Controller For Automatic Lighting Bulbs LED Strips, White | Harfington
harfington
$8.92
LED Motion Sensor Switch DC 12-24V 6A PIR Infrared Body Detect Timer Controller For Automatic Lighting Bulbs LED Strips, Black | Harfington
harfington
$8.92
LED Motion Sensor Switch DC 12-24V 6A PIR Infrared Body Detect Timer Controller For Automatic Lighting Bulbs LED Strips, Black | Harfington
harfington
$10.69
Mini PIR Motion Sensor Switch DC 6-24V 5A Infrared Activated LED Controller With DC Couple Cable For LED Strips Lights, White | Harfington
harfington
$10.69
Mini PIR Motion Sensor Switch DC 6-24V 5A Infrared Activated LED Controller With DC Couple Cable For LED Strips Lights, White | Harfington
harfington
$37.79
120/277-Volt Single-Pole Occupancy Sensor Wall Switch Passive Infrared, Light Almond ODS10-IDT
Home Depot
79
Free shipping
$37.79
120/277-Volt Single-Pole Occupancy Sensor Wall Switch Passive Infrared, Light Almond ODS10-IDT
Home Depot
79
Introduction to Infrared (IR) Spectroscopy | Basics and Practical Demonstration
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Introduction to Infrared (IR) Spectroscopy | Basics and Practical Demonstration
Infrared (IR) spectroscopy is a powerful technique that allows to obtain information about the chemical structure of a variety of substances by utilizing infrared electromagnetic radiation. In this science video we will discuss the basics of this technique with the help of 3D animations and also perform a practical demonstration, where we study ...
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$59.97
Sensorswitch Ceiling Motion Sensor, Passive Infrared PIR Occupancy Sensor, 360° Small Motion Detection, Indoor Use, Low Voltage, Standard Range
Amazon.com
98
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Sensorswitch Ceiling Motion Sensor, Passive Infrared PIR Occupancy Sensor, 360° Small Motion Detection, Indoor Use, Low Voltage, Standard Range
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98
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Motion Sensor Light Switch, IR Sensor Switch Door Activated Light Switch For Closet Light LED Strip Light And Under Cabinet Light With 12V JST Male
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Motion Sensor Light Switch, IR Sensor Switch Door Activated Light Switch For Closet Light LED Strip Light And Under Cabinet Light With 12V JST Male
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ELEGRP Matte Black Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
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ELEGRP Matte Black Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
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Sensorswitch Wall Mount Motion Sensor Switch, Passive Infrared Wall Switch And Occupancy Sensor And Dusk-To-Dawn Photocell, WSX Series, Single Relay
Amazon.com
34
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$46.50
Sensorswitch Wall Mount Motion Sensor Switch, Passive Infrared Wall Switch And Occupancy Sensor And Dusk-To-Dawn Photocell, WSX Series, Single Relay
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34
$25.83
Leviton Motion Sensor Light Switch, Motion Activated, Auto-On/Auto-Off Or Manual-On, 2A, No Neutral Wire Required, Single Pole, DOS02-LW, White
Amazon.com
363
$25.83
Leviton Motion Sensor Light Switch, Motion Activated, Auto-On/Auto-Off Or Manual-On, 2A, No Neutral Wire Required, Single Pole, DOS02-LW, White
Amazon.com
363
$14.99
VST Motion Sensor Switch, IR Sensor Switch Door Activated Light Switch For Closet And Under Cabinet Lighting (DC 12/24V 3A)
Amazon.com
16
$14.99
VST Motion Sensor Switch, IR Sensor Switch Door Activated Light Switch For Closet And Under Cabinet Lighting (DC 12/24V 3A)
Amazon.com
16
$3.56
$24.41
Motion Detector, Motion Sensor Switch, 2Pcs PIR Infrared Motion Automatic Sensor Detector 12V 24V Automatic Sensor, Pir Sensor,Pir Motion Sensor
Temu US
折扣 85%
$3.56
$24.41
Motion Detector, Motion Sensor Switch, 2Pcs PIR Infrared Motion Automatic Sensor Detector 12V 24V Automatic Sensor, Pir Sensor,Pir Motion Sensor
Temu US
$17.99
RAYZEEK Occupancy Vacancy Motion Sensor Light Switch With On/Off Override, Single Pole PIR Infrared Motion Activated Wall Switch, Need Grounding
Amazon.com
55
$17.99
RAYZEEK Occupancy Vacancy Motion Sensor Light Switch With On/Off Override, Single Pole PIR Infrared Motion Activated Wall Switch, Need Grounding
Amazon.com
55
$22.98
Intermatic EK4236S Nightfox™ Stem & Swivel Mount Electronic Photocontrol - Reliable Light Sensing For Outdoor & Commercial HID And LED Fixtures -
Amazon.com
88
$22.98
Intermatic EK4236S Nightfox™ Stem & Swivel Mount Electronic Photocontrol - Reliable Light Sensing For Outdoor & Commercial HID And LED Fixtures -
Amazon.com
88
$22.95
Lutron Maestro Motion Sensor Light Switch Indoor For Bathroom, Garage, Laundry Room, Any Bulbs, Occupancy Vacancy Sensor, Single-Pole, MS-OPS2-WH,
Amazon.com
12 千+
$22.95
Lutron Maestro Motion Sensor Light Switch Indoor For Bathroom, Garage, Laundry Room, Any Bulbs, Occupancy Vacancy Sensor, Single-Pole, MS-OPS2-WH,
Amazon.com
12 千+
$72.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
1 千+
Free shipping
$72.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
1 千+
$109.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
3 千+
Free shipping
$109.99
ELEGRP Occupancy Motion Sensor Light Switch, PIR Infrared Motion Activated Wall Switch, No Neutral Wire, Single Pole For CFL/LED/Incandescent Bulb,
Amazon.com
3 千+
$16.14
ECOELER Ceiling Mount Motion Sensor, 360 Degree Occupancy Sensor Switch, 10-40 ft High Sensitive PIR Infrared Motion Activated Switch For CFL/LED/
Amazon.com
163
$16.14
ECOELER Ceiling Mount Motion Sensor, 360 Degree Occupancy Sensor Switch, 10-40 ft High Sensitive PIR Infrared Motion Activated Switch For CFL/LED/
Amazon.com
163
$14.98
J.LUMI YCA1050 PIR Motion Sensor Light Switch, 85-265V AC 2000W, Ceiling Mount Motion Sensor Ceiling Motion Sensor Switch, PIR Occupancy Sensor,
Amazon.com
667
$14.98
J.LUMI YCA1050 PIR Motion Sensor Light Switch, 85-265V AC 2000W, Ceiling Mount Motion Sensor Ceiling Motion Sensor Switch, PIR Occupancy Sensor,
Amazon.com
667
$27.99
ELEGRP Matte White Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$27.99
ELEGRP Matte White Single Pole Occupancy Motion Sensor Light Switch, Need Neutral Wire, 120° Sensor Coverage PIR Infrared Motion Activated, For CFL/
Amazon.com
113
$12.49
RTNLIT 110-240V Infrared Motion Sensor Switch, Recessed PIR Ceiling Motion Sensor Detector Light Switch Adjustable 360 Degree
Amazon.com
$12.49
RTNLIT 110-240V Infrared Motion Sensor Switch, Recessed PIR Ceiling Motion Sensor Detector Light Switch Adjustable 360 Degree
Amazon.com
$8.59
Hiletgo Outdoor PIR DC 12V Automatic Infrared PIR Motion Sensor Switch For LED Flood Light
Amazon.com
226
$8.59
Hiletgo Outdoor PIR DC 12V Automatic Infrared PIR Motion Sensor Switch For LED Flood Light
Amazon.com
226
$17.89
TOPGREENER In Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, On/Off Override, 4A
Amazon.com
2 千+
$17.89
TOPGREENER In Wall PIR Motion Sensor Light Switch, Single Pole Occupancy Sensor Switch, Motion Sensor Switch, Need Neutral Wire, On/Off Override, 4A
Amazon.com
2 千+