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
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
Schmersal TZFSP24VDC Safety
Door
Lock Switch Relay
Sensor
Micro Switch Zinc Alloy Germany
£1,006.20
MOQ: 1 piece
NEW NOVA INC
1 yrs
US
Previous slide
Next slide
Wholesale Premium Quality Durable A&R SSD-10 Multi-function Wireless Shock
Sensor
16-25uA Current
Door
/Window Contact Shenzhen
£9.06-12.07
MOQ: 1 piece
A & R TECHNOLOGIES LIMITED
2 yrs
HK
4.9
/5.0
(4)
Previous slide
Next slide
PLC Controller
Sensor
Safety
Door
Switch Brand New Original D4NS-2DF
£56.57
MOQ: 1 piece
Ruida Automation Technology
1 yrs
HK
4.1
/5.0
(6)
Previous slide
Next slide
Home
Door
Window Magnetic Glass Break
Sensor
Tuya Smart for Alarm 500dB Sound 100-200m Detection Range Easy Installation
£1.51-1.89
MOQ: 2 pieces
GO GO AUTOMATIC COMPANY LIMITED
1 yrs
HK
4.7
/5.0
(275)
Previous slide
Next slide
Easy Installation EAS AM System Supermarket Security
Sensor
Scanner Anti-Theft Antenna
Door
for Cosmetics Stores Warehousing
£148.58-153.86
MOQ: 1 set
RUIHONGTAI SECURITY TECHNOLOGY (HK) LIMITED
4 yrs
HK
5.0
/5.0
(2)
Previous slide
Next slide
KEYENCE GS-51N10 Safety
Door
Switch GS Series Mechanical Lock Standard NPN Cable Lead Out Type (10 M) GS 51N10
£150.84-211.17
MOQ: 1 piece
Mingcheng Industrial Automation
1 yrs
HK
5.0
/5.0
(3)
Previous slide
Next slide
Keyence GS-ML51N Sliding
Door
Model Holding Force 500N M12 Connector Type Standard Type NPN Safety Interlock Switches
£37.71-377.09
MOQ: 1 piece
ANKE AUTOMATION LTD
3 yrs
US
Previous slide
Next slide
Outdoor Waterproof Metal Office
Door
Open
Sensor
Intrusion Alarm Gap Magnet Contact Wireless Gate
Door
Detector
£37.71-113.13
MOQ: 10 sets
EASEMIND TECHNOLOGY LIMITED
13 yrs
HK
5.0
/5.0
(2)
1
More pages
5
6
7
8
9
10
11
12
13
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
US
