All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
Filters
Supplier types
Trade Assurance
Protects your orders on Alibaba.com
Store reviews
Based on a 5-star rating system
4.0 & up
4.5 & up
5.0
Product types
Ready to Ship
Paid samples
Categories
alarm systems
smart locks
biometric access control products
inductive switches
Price
-
OK
Min. order
OK
Supplier country/region
Bulgaria
Hong Kong SAR China
Italy
Myanmar
Poland
Spain
Taiwan China
United Kingdom
United States
Uzbekistan
Vietnam
Alarm Type
app
horn
strobe
Network
gsm
wifi
bluetooth
View more
Sensor Type
motion sensor
vibration sensor
glass break sensor
Usage
door
window
fire
View more
App Support
Tuya
Alexa
Google Home
View more
Feature
Easy Installation
Portable
PIR Motion Sensor
View more
Material
Metal
Abs
Plastic
View more
Detection Range
Up to 10 m
10-20m
20-30m
View more
Special Features
Waterproof
Remote Control
Tamper Alarm
Control Method
App
Remote
Voice
Application
Home
Hotel
Garage
View more
Power Source
Built-in Battery
DC 12V
Operating System
Tuya
Android
Lock Cylinder Security Grade
Grade C
Grade A
Plug Type
Universal
Cn
EU
Type
Card
Key
Fingerprint+Card+Password+App+Key
View more
Smart App
Tuya App
Door Type
Wood Door
Steel Door
Aluminum Door
View more
Data Storage Options
Cloud
Memory Card
Display Color
White
Black
Alibaba
Security
Alarms
Alarm Systems
Tuya door sensor
(999+ products available)
Previous slide
Next slide
RSH
Tuya
Wifi Intelligent Window Detector Thickness
Door
Security Smart Life Contact
Sensors
Alexa Google Wifi
Door
Sensor
$2.87-3.50
MOQ: 2 pairs
RSH Technology Co., Ltd.
18 yrs
CN
4.5
/5.0
(194)
Previous slide
Next slide
ZX-G20 White
Tuya
Smart 4G GSM WiFi 433mhz Wireless Security Alarm System Home Alarm High Quality Motion Detector
Door
Sensor
$26.50-34
MOQ: 15 pieces
Shenzhen Smartrol Technology Limited
7 yrs
CN
4.8
/5.0
(29)
Previous slide
Next slide
Smart Life WiFi Smart Alexa Google
Tuya
App Control Garage
Door
Opener
Sensor
12 Months Warranty Simple
$8.50-8.80
MOQ: 10 pieces
Shenzhen Rich Security Technology Co.,Ltd
9 yrs
CN
4.9
/5.0
(11)
Previous slide
Next slide
Tuya
Smart WiFi
Door
Window Light Illuminance
Sensor
2-in-1 Security Alarm System Alexa/Google Home Plastic 10-20m Detection Low
$4.30-4.60
MOQ: 10 pieces
Shenzhen Professional Security Technology Co., Limited
18 yrs
CN
4.9
/5.0
(146)
Previous slide
Next slide
Tuya
WiFi Magnetic
Door
Sensor
Alarm System Smart Home Security
Door
Detector
Sensor
$5
MOQ: 1 set
Shenzhen Topmax Electronics Co., Ltd.
8 yrs
CN
4.6
/5.0
(68)
Previous slide
Next slide
Tuya
Smart Wifi Zigbee
Door
Gap
Sensor
$3.90-4.20
MOQ: 1 piece
Shenzhen Ansky Technology Co., Ltd.
11 yrs
CN
4.8
/5.0
(48)
Previous slide
Next slide
Smart
Door
Opening Closing Contact
Sensor
Black Shell
Tuya
Zigbee
Door
Sensor
With a Gateway Support Alexa Google Home
$3.20-4
MOQ: 10 sets
SHENZHEN WALE GROUP CO., LTD.
17 yrs
CN
4.6
/5.0
(99)
Previous slide
Next slide
Smart Indoor Home Automation Kit Zigbee Anti-Theft Pir Motion
Door
Opener Window
Sensor
with Switches Sockets Box
Tuya
APP
$30-40
MOQ: 3 sets
Shenzhen Daping Computer Co., Ltd.
14 yrs
CN
4.9
/5.0
(30)
1