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
Supplier
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
Other Sensors
Magnetic Sensors
Image Sensors & Camera Sensors
Safety Sensors
Other Access Control Products
Biometric Access Control Products
View more
Price
-
OK
Min. order
OK
Supplier country/region
Australia
Belgium
Bulgaria
Cambodia
Canada
Germany
Greece
Hong Kong SAR China
India
Indonesia
Italy
Japan
Malaysia
Mexico
Myanmar
Pakistan
Philippines
Poland
Russia
Singapore
South Korea
Spain
Taiwan China
Thailand
Turkey/Türkiye
United Arab Emirates
United Kingdom
United States
Uzbekistan
Vietnam
Management certifications
ISO
Alarm Type
App
Horn
Strobe
Network
GSM
WiFi
Bluetooth
View more
Sensor Type
Motion Sensor
Water Detector Sensor
Vibration Sensor
View more
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
Application
Safety Protection
Indoor & Outdoor
Type
PLC
Dedicated Controller
PAC
Resolution
1080p
2 MP
Turnstile Function
Access Control
Functional Application
Artificial Intelligence/Machine Learning
Wireless Communication
Security
Max. Current
0.5A
1a
2a
Material - Body
Aluminum
Printed Circuit Board
Brass
View more
Positioning Mode
GSM
LBS
Special Features
Waterproof/Weatherproof
Anti-theft
Night Vision
View more
Voltage
12V
24V
110 V
View more
Access Control Type
Face Recognition
Fingerprint
Trigger Type
Contact
Optical
Alibaba
Security
Alarms
Alarm Systems
Door sensor
(999+ products available)
Previous slide
Next slide
KKM S1 Hot Selling Programmable Bluetooth Low Energy Iot
Door
Sensor
For Asset And Smart Home
£3.74-7.55
MOQ: 2 pieces
KKM TECHNOLOGY COMPANY LIMITED
2 yrs
HK
5.0
/5.0
(4)
Previous slide
Next slide
Door
Sensor
Magnetic Proximity
Sensor
Reed Switch Smart Home Automation Sensing Distance 0-10m No Standby Power Consumption
£0.9051-3.02
MOQ: 500 pieces
Fuen (HK) Electronics Co., Limited
1 yrs
HK
5.0
/5.0
(1)
Previous slide
Next slide
Security Rolling Gate Metal Magnetic
Door
Contact Switch
Sensor
£2.27-3.78
MOQ: 1 piece
Fast Sensor Hongkong Limited
11 yrs
HK
3.2
/5.0
(3)
Previous slide
Next slide
Reliable right side long distance magnetic
sensor
6M000038 PSEN mg1-B-LDLLF-RBA1-U3-U switch machine
door
monitoring
£67.13-82.21
MOQ: 1 piece
SHENGJIN INDUSTRIAL (HK) LIMITED
1 yrs
HK
5.0
/5.0
(10)
Previous slide
Next slide
Tuya
Door
Window
Sensor
Smart Home Security Alert Device App Control Battery Powered Plastic
£4.91
MOQ: 1 bag
LOCKA SPACE LIMITED
2 yrs
HK
Previous slide
Next slide
By Alarm Plus Rf Magnetic Contact Brown 12.2 Cm Length
Door
Window
Sensor
£61.45-79
MOQ: 1 unit
Planet Shop S.r.l.
1 yrs
IT
4.6
/5.0
(25)
Previous slide
Next slide
Wholesale FPS-3018 magnetic
door
contact reed proximity switch
sensor
for window
£0.3771-0.7542
MOQ: 10 pieces
KOLAS ELECTRIC PTE. LTD.
9 yrs
SG
Previous slide
Next slide
AILIF ABO-20I Station Barrier Gate Automatic
Door
Sensor
Switch Burglar Alarm Wireless Infrared Beam Detector 15m Detection E491
£8.98-9.81
MOQ: 1 piece
HELLOCHIP LIMITED
1 yrs
HK
4.6
/5.0
(597)
1
More pages
3
4
5
6
7
8
9
10
11
More pages
99
Related Searches:
rf detector
wireless house alarm
wireless home alarm systems
door sensor alarm
wireless alarm
tracker detector
wireless house alarms
pir sensor outdoor
noise detector
motion sensor alarm
door alarms
stop alarm
wifi alarm system
wired alarm system
tv simulator
window alarm sensors
wireless burglar alarms
window alarms
motion detectors
alarm door contacts
Supplier
ISO
SG
