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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 Flood Control Leakage Alarm System with DN20, DN25, DN15 Auto Shut Close Brass Valve and Water Detector Cable
65.16
−
82.16
$
177
orders
/
73
review
Low,
46
%
Wofea WIFI water sensor with auto shut valve smart siren automation Compatible with Alexa
10.36
−
54.56
$
176
orders
/
17
review
Middle,
81
%
Outdoor Waterproof Infrared Beam Detector, 433MHz Wireless / Wired detector, infrared barrier Detector
31.66
−
$
174
orders
/
63
review
Low,
14
%
1/4 pcs Flood Water sensor Leak Detector Water Tank Full Alarm smart life APP instant feedback tuya ZigBee 3.0 tygwz-01 hub need
9.99
−
39.93
$
173
orders
/
31
review
Middle,
79
%
Darho Superior Wireless Doorbell PIR Infrared Movement Entry Door Bell Welcome Alarm Chime Motion Sensor Detector System 300M
4.14
−
16.48
$
166
orders
/
18
review
Middle,
72
%
Tuya Smart Wifi Water Leakage Alarm Independent WIFI Water Leak Sensor Detector Flood Alert Overflow Security Alarm System Tuya
0.00
−
$
162
orders
/
13
review
Middle,
72
%
GauTone Wireless Outdoor Solar Siren Powered Strobe Sound Flash Waterproof Alarm Siren for 433MHz Wifi GSM Alarm System
29.94
−
37.31
$
160
orders
/
26
review
Middle,
80
%
DC/AC 12~24V waterproof IP55 photocell automatic gate door safety sensor alarm infrared beam sensor photocell 15m detect range
0.00
−
$
159
orders
/
31
review
Middle,
85
%
DC6~36V M12 Waterproof Laser Photoelectric Switch Laser Beam Sensor Detector 20 meters Distance NPN PNP NO NC
6.47
−
11.09
$
158
orders
/
71
review
Middle,
85
%
Sgooway Wired Door Window Sensor detector Magnetic Switch normally Closed NC for our Home security Alarm System
0.88
−
18.56
$
156
orders
/
47
review
Middle,
65
%
wofear 2pcs/lot wireless vibration sensor shock detector Break Breakage Glass Sensor Detector
6.65
−
$
154
orders
/
×
review
Middle,
81
%
KERUI 5pcs 10pcs 433MHZ wireless home fire smoke alarm GSM Wifi alarm system
35.10
−
66.98
$
150
orders
/
36
review
High,
89
%
1Set P-3 Black Sliding Door Contact Switch for Car Van Central Locking Systems
2.78
−
$
145
orders
/
21
review
High,
87
%
Wireless Window Door Burglar Security Warning Alarm System Magnetic Sensor
108.16
−
982.63
$
136
orders
/
37
review
Middle,
84
%
GauTone 85dB Wireless Siren Strobe Light Alarm Alert Sensor For 433MHz Wifi GSM Security Alarm System
14.64
−
$
135
orders
/
17
review
Middle,
80
%
free shipping!8pcs/lot Wired PIR Motion Sensor Alarm Detector PIR Infrared Motion Detector Sensor for GSM Alarm & Home Security
70.30
−
$
135
orders
/
24
review
Middle,
83
%
15M AC110V-220V PIR 10-100W Infrared Motion Sensor Universal Inductive Switch Identify Day and Night Automatically Easy install
1.95
−
$
134
orders
/
3
review
Low,
24
%
NC NO Magnetic Contact Switch Door Sensor Wired Metal Roller Shutter Door Home Alarm System
1.10
−
$
130
orders
/
40
review
Middle,
81
%
KERUI P861 Waterproof PIR Motion Sensor Detector For KERUI Wireless Security Alarm Driveway Garage Burglar Alarm
14.56
−
$
124
orders
/
7
review
High,
89
%
(1piece)433MHZ pcf7947 chip 2 Button Remote Card smart key For Renault Laguna Card with Grey Blade
11.79
−
$
123
orders
/
23
review
Middle,
77
%
wofea wireless PIR infrared sensor motion detector 1527 Type 3V power for home security alarm 433mhz
5.71
−
90.04
$
122
orders
/
22
review
Middle,
81
%
GauTone Door / Window Sensor 433MHz Wireless Home for Alarm System App Notification Alerts Sensor Detector
7.59
−
13.21
$
32
orders
/
94
review
Middle,
80
%
KERUI Wireless Curtain Infrared Detector Window PIR Motion Sensor 433MHz Wireless For GSM PSTN Home Security Alarm System
13.28
−
81.25
$
121
orders
/
27
review
Middle,
84
%
5V 12V Water Leakage Sensor Relay Module Water Leaking Flood Overflow Detector with Cable for Smart Home Security
5.89
−
11.69
$
119
orders
/
21
review
Low,
32
%
LPSECURITY Automatic sliding swing gate door microwave motion sensor detector(black color)
8.07
−
10.45
$
119
orders
/
20
review
Middle,
78
%
Tuya Smart Wifi Water Leakage Alarm Independent WIFI Water Leak Sensor Detector Flood Alert Overflow Smart Security Alarm System
8.83
−
12.84
$
118
orders
/
27
review
Middle,
80
%
PIR Motion Sensor Switch Light Lamp Sensor Detector Infrared Movement Detector Automatic Lighting Switch Alarm Systen
11.10
−
$
115
orders
/
44
review
Low,
29
%
Hot Sale Wireless Magnetic Door & Window Sensor EV1527 Coding Mode RF 433MHz for Home Security Alarm System Burglar Alarm Kits
5.95
−
27.05
$
114
orders
/
21
review
Middle,
84
%
Outdoor Waterproof Wireless Animal Immune Infrared Detector 433MHz Long Working Distance For Home Burglar Wifi /GSM alarm system
19.79
−
$
114
orders
/
21
review
High,
90
%
433Mhz Wireless PIR Infrared Motion Sensor Alarm Detector With Flash Led Light for Smart Home Security Alarm System
7.65
−
64.60
$
114
orders
/
71
review
Middle,
80
%
433MHz Two-way Intelligent Door/Window Sensor Wireless Guarding Door Detector Detect Door Open/Close, for G90E, G90B, G90B Plus
4.63
−
63.64
$
113
orders
/
25
review
Low,
32
%
KERUI Waterproof Infrared Sensor P861 Wireless Security Alarm Motion Sensor Outdoor Motion Detection Adjustable Detection Angle
13.88
−
36.73
$
113
orders
/
17
review
Middle,
81
%
KERUI Wireless Mini Design PIR Motion Detector Passive Infrared Alarm Sensor with Magnetic Swivel Base for Home Alarm System
9.22
−
68.34
$
113
orders
/
24
review
Middle,
84
%
Sgooway 8 pieces Wired PIR sensor infared detector wired motion sensor alarm system
9.98
−
76.00
$
113
orders
/
12
review
Middle,
65
%
Wireless 433MHz EV1527 Mini PIR Motion Sensor Alarm Detector Infrared Sensor PIR Sensor Motion Detector for Home Burglar Alarm
7.91
−
51.29
$
112
orders
/
152
review
Middle,
84
%
PGST Window Door Sensor for 433MHz Alarm System PG103 Wireless Home Alarm App Notification Alerts
3.54
−
31.03
$
112
orders
/
21
review
Middle,
79
%
KERUI M5 32 Songs Wireless PIR Motion Sensor Door Bell Shop Visitor Alert Chime Alarm Burglar Doorbell for Office/Home Security
8.48
−
15.77
$
111
orders
/
23
review
High,
89
%
Tuya WiFi GAS LPG Leak Sensor alarm Fire Security detector APP Control Safety smart home Leakage sensor support AC 85V-250V
12.60
−
17.64
$
111
orders
/
15
review
Middle,
83
%
12V LPG Propane Butane Combustible Gas Leak Alarm Detector Sensor LED Flash Alarm Sound Motor Alarm Home Security Safety GT
19.31
−
$
110
orders
/
13
review
Low,
25
%
1 PC 433MHz Wireless Water Leakage Sensor Leak Detector For Home Security Alarm Newest L29K
2.51
−
$
106
orders
/
14
review
High,
88
%
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