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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
Water Leakage Alarm Detector Water Alarm Leak Sensor Detection Flood Alert Overflow For W3B Home Security GSM Alarm System
4.37
−
$
9
orders
/
0
review
Middle,
73
%
KERUI New Wireless Extra Door Window Magnetic Sensor for Home Security Voice Burglar PSTN GSM WIFI Alarm System Battery Included
5.74
−
22.94
$
9
orders
/
4
review
Middle,
81
%
(1 PCS)12VDC NC output Home security Control Ceiling Coal Gas natural Gas Alarm LPG Leak detector Alarm Gas sensor Gas leaking
14.18
−
$
9
orders
/
1
review
Low,
16
%
Safety Window Wall Barrier IR Outdoor Motion Alarm/Dual Beam Sensor Active Infrared Intrusion Detector up to 30-150m distance
9.98
−
$
9
orders
/
1
review
Low,
12
%
wofea wireless magnetic window door sensor for home alarm system 433MHZ 5pcs/lot
10.18
−
$
9
orders
/
4
review
Middle,
81
%
Russian Water Leak Sensor Alarm WLD-806 with 1/2"(DN15) 3/4"(DN20) (1"DN25) Valve Aaginst Flood Overflow Water Leaking Detector
7.43
−
98.58
$
8
orders
/
4
review
Low,
27
%
AC 110V 220V PIR Infrared Motion Sensor Wall Mounted Sensor Motion Light Switch ON/OFF Automatic Recessed For LED Lamp Bulbs
4.12
−
6.39
$
8
orders
/
1
review
Middle,
83
%
Outdoor Wireless PIR Alarm Motion Sensor Animal Immune Infrared Detector 433Mhz RF Sensor Waterproof Home Safety Alarm System
100.43
−
$
8
orders
/
4
review
Middle,
64
%
YAOSE Wireless Magnetic Sensor Window & Door Sensor for All RF 433MHz Home Alarm Security Smart Gap Sensor to Detect Open Door
2.94
−
26.17
$
8
orders
/
2
review
Middle,
85
%
2022 NEW White Tuya WiFi Water Leakage Sensor Smart Life Water Detector Compatible With Tuyasmart APP
8.64
−
10.52
$
8
orders
/
3
review
Low,
37
%
Waterproof Dual Beam Sensor Active Infrared Intrusion Detector IR 20m~150m Outdoor Perimeter Wall Barrier Fence for GSM alarm
4 677.72
−
$
8
orders
/
2
review
Low,
12
%
Home Alarm Water Leakage Alarm Detector 120dB Independent Water Leak Sensor Detection Flood Alert Overflow Security Alarm System
0.69
−
1.38
$
8
orders
/
3
review
Low,
21
%
Wifi Ceiling Infrared Detector PIR Movement Sensor Human Body Motion Sensor Alarm Security Burglar Alarm System IOS Android APP
8.80
−
$
73
orders
/
19
review
High,
90
%
Tuya ZigBee PIR Sensor IFTTT Battery Powered Smart Wireless WIFI PIR Motion Sensor Detector Home Alarm System ZigBee PIR Sensor
14.19
−
$
8
orders
/
3
review
Middle,
72
%
KERUI DW9 Waterproof PIR Motion Detector Driveway Alarm Garage Welcome Burglar Alarm System LED Wireless Driveway Security Alarm
22.58
−
106.72
$
8
orders
/
×
review
Middle,
81
%
Water Leakage Sensor Flood Leak Liquid Detector Probe Alarm for Home Farm Security Anti-corrosion water alarm system
1.92
−
12.65
$
8
orders
/
3
review
Middle,
75
%
Natural Gas Leakage Sensor LPG Methane CH4 Leak Alarm Detector with Solenoid Valve DN15 DN20 Auto Shut Off Gas Cylinder Pipeline
11.69
−
29.20
$
8
orders
/
3
review
Middle,
70
%
10m Gate & Door sensor Safety beam Sensors/waterproof reflective mirror Infrared Photocells
18.79
−
$
8
orders
/
2
review
Middle,
83
%
10pcs NC Wired Door Window Sensor Magnetic Switch Home Alarm System Detector
7.65
−
$
8
orders
/
1
review
Middle,
83
%
HIDAKA WLD-807 (DN15*2pcs) Water Leaking Detector Alarm for Smart Home Sensor Cable with 2pcs 1/2" BSP NPT Valve 6m Eu/US Plug
59.82
−
$
8
orders
/
1
review
Low,
3
%
Russian/Ukraine Water Leakage Sensor with DN15 DN20 DN25 Auto Stop Valve Water Leaking Detection Alarm System For Smart Home
69.68
−
83.20
$
8
orders
/
×
review
Low,
27
%
Free shipping CE Wireless window and door sensor 1527 battery not included 10pcs/lot
19.54
−
$
8
orders
/
1
review
Middle,
81
%
Sgooway 20 Pieces 433MHZ wireless PIR sensor wireless motion sensor detector for alarm 2 years warranty
53.95
−
$
8
orders
/
2
review
Middle,
65
%
PB68R Wireless Magnetic Door & Window Sensor with EV1527 Coding Mode RF 433MHz for Home Security Alarm System Burglar Alarm Kits
5.36
−
51.50
$
7
orders
/
1
review
Middle,
85
%
Tuya Smartlife APP Remote Control WiFi Water Leakage Detector Sensor Alarm Wire Water Level Detector
5.14
−
$
7
orders
/
11
review
Middle,
76
%
Home Security Alarm Systen LED PIR High Sensitivity Motion Sensor Detector Waterproof Outdoor IP65 Adjustable PIR Switch
3.71
−
$
7
orders
/
2
review
Low,
29
%
25pcs Kerui Home Alarm Wireless Door Window Magnetic Detector Gap Sensor For GSM Wifi Home Security Alarm System Touch Keypad
63.99
−
69.59
$
7
orders
/
2
review
Low,
41
%
Waterproof Dual Beam Sensor Active Infrared Intrusion Detector IR 10m~150m Outdoor Perimeter Wall Barrier Fence for GSM alarm
11.35
−
$
7
orders
/
5
review
Middle,
77
%
Security Wireless Home Window Door Burglar Security Alarm System Magnetic Sensor
14.48
−
$
7
orders
/
19
review
Middle,
74
%
Wireless 433MHZ Door Window Security Smart Gap Sensor for PG103 W2B W3B Home Security WIFI GSM 3G GPRS Alarm system
4.97
−
7.00
$
7
orders
/
1
review
Middle,
73
%
Awaywar 433MHz Gas Alarm LPG Detector Wireless Sensor For smart home Alarm System Auto Detect Built-in siren Fire prevention
9.44
−
10.67
$
7
orders
/
4
review
Middle,
86
%
Magnetic Reed gap Switch NC&NO Combined Door/Window Contact Sensor for Wireless Security Alarm System
74.96
−
$
7
orders
/
1
review
Low,
37
%
3pcs Water Leak Detector Sensor Alarm Detector 90dB Voice Wireless Water Leakage Flood Alert House Safety Home Security
17.39
−
$
7
orders
/
1
review
Low,
24
%
433MHz 315MHz Wireless Window Door Magnet Sensor Detector For Home Wireless Alarm System
5.04
−
$
7
orders
/
3
review
Middle,
70
%
433MHz Wireless Water level detector Sensor, For PSTN GSM Alarm System for GSM Home Burglar Security Alarm System, Free Shipping
4.68
−
$
7
orders
/
2
review
High,
90
%
Laser receiver Laser alarm sensor with relay output for alarm system
9.29
−
$
7
orders
/
1
review
Low,
40
%
2022 LED Infrared Sensor Photosensitive Sensor Night Light Wireless USB Rechargeable Night lamp For Bedside Wardrobe Wall Lamp
588.37
−
$
6
orders
/
×
review
Middle,
85
%
DC5V-24V 12V 5A Sensor PIR Switch Infrared Motion Detector Sensor Controller for LED Strip Light with DC Connector
4.00
−
$
6
orders
/
1
review
Middle,
84
%
Door Window Entry Security ABS Wireless Remote Control Burglar Alarm Magnetic Sensor door sensor System Home Protection Kit
8.21
−
19.52
$
6
orders
/
×
review
Low,
42
%
Automated Gate Safe Infrared Detector Sensor/ Swing /Sliding/Garage Gate / Door Safety Infrared Photocells
12.88
−
48.40
$
6
orders
/
1
review
Middle,
76
%
1
2
3
4
5
6
7
8
9
10
11
12
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