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Sensor & Detector
Price
$
−
$
Apply
rating alitools
High (87–100%)
Middle (50–86%)
Low (0–49%)
categories
Clear
Security & Protection
Security Alarm
Sensor & Detector
By orders
By price
By reviews
By Alitools rating
627 products
315MHz Wireless Window Door Sensor Magnetic Contact Wood Door Alarm Detector 2262 Code Wireles GSM Home Alarm Panel
3.10
−
$
18
orders
/
5
review
Low,
28
%
Human Body Infrared PIR Motion Sensor Switch DC5V-12V 3A Timer Automatic Switch For LED Strip Light Module Tape
2.49
−
$
18
orders
/
3
review
Middle,
84
%
M12 Waterproof Laser Photoelectric Switch NPN M12JG-30N1 Laser Sensor Switch 20 meters Distance NPN Normally Open
7.82
−
$
18
orders
/
2
review
High,
90
%
Security alarm system NO type Wired Recessed Window Door Magnetic Contact Reed Switch door sensor Alarm switch
1.63
−
$
18
orders
/
5
review
Low,
37
%
Tuya WiFi Smoke Alarm Fire Protection Smoke Detector Smoke house Combination Fire Alarm Home Security System Fire
50.12
−
432.58
$
18
orders
/
2
review
Middle,
65
%
10m Outdoors INFRARED SAFETY BEAM PHOTOCELL AUTOMATIC GATE DOOR GARAGE SHUTTER BARRIER SENSOR
3.93
−
$
18
orders
/
1
review
Middle,
80
%
free shipping 3 Button Electronic Remote PCB Repair Set for Renault Megane Card without PCf7947
6.02
−
$
18
orders
/
7
review
Middle,
77
%
Waterproof KERUI32 Songs Touch Button Welcome Door bell Smart Home Alarm Intelligent Wireless Doorbell For Home Alarm Security
7.59
−
23.74
$
18
orders
/
5
review
Low,
41
%
Wireless PIR Motion Sensor Detector Anti-theft Doorbell Alarm Activated Voice Speaker for Welcome Doorbell and Driveway Garage
8.25
−
$
17
orders
/
4
review
Low,
39
%
DARHO36 ringtones Store Home Security Welcome Chime Wireless Infrared IR Motion Sensor Door bell Alarm Entry Doorbell Sensor
6.26
−
11.35
$
17
orders
/
5
review
Middle,
72
%
Tuya smartlife WIFI Door / Window Detector WiFi App Notification Alerts Security Sensor support alexa google home no need hub
6.81
−
13.98
$
17
orders
/
4
review
Middle,
81
%
Free shipping MC-38 Wired Door Window Sensor detector Magnetic Switch normally Closed for security Alarm System
3.29
−
4.23
$
17
orders
/
7
review
Low,
37
%
DC12-24V Reflective photoelectric switch photocell E3Z-R61 NPN output Reflex Light Barrier 2.5m detect distance
6.22
−
$
17
orders
/
1
review
High,
90
%
Tuya Smart WiFi Door Sensor Door Open / Closed Detectors Compatible With Alexa Google Home Powered Smart Life APP Control
5.31
−
10.07
$
17
orders
/
7
review
Low,
12
%
10m range garage sliding door gate opener barrier gate Safety beam Sensor/Battery power Infrared Photocell Gate & Door sensor
19.21
−
$
17
orders
/
10
review
Middle,
80
%
Waterproof Dual Beam Sensor Active Infrared Intrusion Detector IR 20m~150m Outdoor Perimeter Wall Barrier Fence for GSM alarm
10.78
−
12.48
$
16
orders
/
0
review
Low,
12
%
Good quality(1 pcs ) 4 Button smart card with pcf7952 for Renault Megane III Fluence Laguna III Scenic 2009-2015 433MHz
17.67
−
$
16
orders
/
1
review
Middle,
77
%
Tuya Wifi Smart Natural Gas Alarm Sensor Combustible Gas Leak Detector LCD Display Smart Life App message push auto close valve
19.67
−
$
16
orders
/
5
review
Middle,
81
%
Ac110V~240V Outdoor Pir Motion Sensor Switch Wall Light Lamp 180 Degree Sensor Detector Pir Motion Sensor Led Switch
0.00
−
$
30
orders
/
4
review
Middle,
84
%
1 PCS 220VAC Combustible Gas Alarm Include Valve Cut Off Gas Leaking Coal Natural LPG Gas leak detector DN15 Kitchen Safe Device
13.75
−
28.06
$
16
orders
/
3
review
Low,
19
%
KERUI Wireless Alarm Infrared Detector Anti-Pet PIR Sensor Detector With long Detect Distance For KERUI Alarm System
15.64
−
$
16
orders
/
7
review
High,
89
%
Free shipping New 4 Button Card(Not Smart) With PCF7941 for Renault Megane III Laguna III (1 piece)
788.87
−
$
16
orders
/
4
review
Middle,
77
%
24V Water Leakage Sensor Relay Module Water Leaking Flood Overflow Detector with Cable for Smart Home Security
5.86
−
11.16
$
15
orders
/
2
review
Low,
32
%
wired digital PIR motion detector MC-8250 Wired PIR Sensor Pet immunity Compatible with all alarm system which has wired Port
11.30
−
94.05
$
15
orders
/
4
review
Middle,
79
%
eWelink Water Level Leakage WIFI Water Leak Sensor Detector Alarm Overflow Security System works with SONOFF Bridge Smart Home
6.95
−
$
15
orders
/
23
review
Middle,
80
%
5m 7m 10m Outdoor INFRARED SAFETY BEAM INFRARED Reflective PHOTOCELL AUTOMATIC GATE DOOR GARAGE SHUTTER BARRIER SENSOR
10.50
−
14.00
$
15
orders
/
5
review
Middle,
80
%
Wireless Passive Infrared Detector PIR Sensor 433MHz 1527 Code For Our Wifi / GSM / PSTN Home Security Alarm System
5.15
−
$
15
orders
/
7
review
High,
90
%
125 dB Anti-theft Burglar Stop System Security Home Wedge Shaped Door Stop Stopper Alarm Block Blocking System
0.91
−
3.55
$
15
orders
/
3
review
Low,
32
%
LPSECURITY Wired Garage Metal Roller Shutter window Gate Door Sensor detector Magnetic Contact Switch(NORMALLY CLOSED)
3.80
−
6.17
$
15
orders
/
1
review
Middle,
83
%
Russia Ukrain House Water Leaking Detection System with Shut Off Valve DN15*2pcs and 3pcs Water Sensor Cable
7.48
−
125.73
$
15
orders
/
4
review
Low,
46
%
Sgooway WIFI garage door opener controller door Open / Closed Detectors Compatible With Alexa Google Home Tuya APP
17.30
−
30.55
$
15
orders
/
6
review
Middle,
65
%
Combustible Natural Gas Leak Detector LPG LNG Sensor High Sensitive Alarm System For Home EU Plug
12.60
−
15.00
$
14
orders
/
×
review
Middle,
80
%
KERUI Security Alarm 120dB Camping Travel Mini PIR Infrared Motion Sensor Detector Alarm Self Defense Anti-theft Personal Alarm
17.07
−
59.40
$
14
orders
/
9
review
High,
89
%
HEIMAN Zigbee combustible gas leak detector fire Security alarm system safety smart home Leakage lpg sensor HA1.2
76.50
−
$
14
orders
/
1
review
Low,
27
%
EARYKONG WiFi Garage Door Opener Smart Garage Compatible With Alexa Echo Google Home Smart Life Tuyasmart APP IOS Android USB 5V
16.75
−
$
14
orders
/
4
review
High,
90
%
Combustible Gas Alarm LPG LNG Coal Natural Gas Leak Standalone Detector Sensor High Sensitive For Home Security Safety
4.18
−
$
14
orders
/
2
review
Middle,
79
%
Tuya Smart WiFi Door Sensor Door Open / Closed Detectors WiFi App Notification Alert security alarm support Alexa Google Home
20.03
−
58.77
$
14
orders
/
3
review
Middle,
64
%
Russian ship Water Leakage Sensor with 2pcs DN20 Auto Shut Off Valves Water Detector Flood Alert Overflow WLD-807 Security Alarm
11.12
−
117.24
$
14
orders
/
4
review
Low,
18
%
Dual Beam Sensor Active Infrared Intrusion Detector With Detect distance 30-150M For Perimeter Wall Barrier GSM Alarm System
10.85
−
$
14
orders
/
2
review
Low,
12
%
DC 5V/12V/24V USB Body Infrared PIR Motion Sensor Switch Human Motion Sensor Detector Switch For LED Light Strip Automatic
3.62
−
$
14
orders
/
4
review
Low,
37
%
1
2
3
4
5
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