Transmit Freqency: 433MHz. This rolling door sensor can not work alone. It works with most alarm system in the market. Check if your alarm system support 433mhz. When the roller shutter/rolling door is opened from the closed position, LED will turn on red light for 5 seconds; the sensor will be triggered and will send alarming signal to the main unit.
eBay
YUPA Wireless Magnetic Sensor Window Door Sensor for All RF 433MHz Home Alarm Security Smart Gap Sensor to Detect Open Door TUYA
Aliexpress UK
DUAL MODE SELECTION: Switch and alarm mode integrated key, push up is the doorbell, push down is the alarm sound, when not in use, the switch key resets. STRONG DETERRENT: Built-in high-loudness alarm horn, the decibel reaches 120db, making a harsh sound, powerfully deterring thieves.
eBay
VIKEFON Zigbee Door Sensor Smart Home Window Sensor Works Home Assistant Zigbee 3.0 Gateway Door Window Alarm Sensor APP Control
Aliexpress UK
Description:Surface mount contact, screw mount white ABS housing. Wire is not included.Comes with installation screws.Great for use in family and factory wooden window, doors. etc.Switch Type: NC(normal close type), NC : When the magnet together, the circuit is conductive ,When the magnet separate,the circuit not conductive .When make order,please check carefully! .
eBay
EWelink Zigbee Door Sensor Smart Home Window Sensor Works Home Assistant Zigbee 3.0 Gateway Door Window Alarm Sensor APP Control
Aliexpress UK
1 Pcs PIR Motion Sensor Detector. 2 Pcs PIR Motion Sensor Detector. Use it to monitor any area inside or outside, it's wireless so you can place it anywhere in the house or even take it from room to room.
eBay
Ewelink ZigBee Door Window Sensor Entry Sensor Burglar Door Sensor Smart Home Alarm Security Protection Work With Zigbee Gateway
Aliexpress UK
Complete Starter Kit: Features a loud more 90 DB alarm unit (siren). Use double-sided tape to secure the main unit to the side of the door/window. Test the setting by switching the system switch to the "ON" position of the main unit to see if the alarm can be triggered by opening the door/window.
eBay
Ewelink ZigBee Door Window Sensor Contact Sensor Security Burglar Alarm Magnetic Door Sensor Support Home Assistant Zigbee2mqtt
Aliexpress UK
Multi-purpose Suitable for various types of doors windows (sliding/crank/hung....doors and windows ), cabinets, and drawers... Real-time State Protection Immediately alarm while thief pushing the door or window. Response in 200ms. Triggered immediately Alarm will be triggered immediately once you separate two parts.110 db loud alarm helps deter intruder and possibly notifies neighbors/homeowner, also helps notify you if visitors/children/pet or others are coming/going when you are at home. Easy Installation The double-sided stickers on the back allow you to easily paste this alarm kit onto any smooth surface.
eBay
2 In 1 Zigbee Door Sensor Window Sensor With Light Vibration Detect Smart Home Door Detector AntiTheft Alarm Sensor Support Z2M
Aliexpress UK
120dB high-pitched continuous siren when it is enabled. Type: Door Stop Alarm. Easy Install: No wiring needed, just put 9v battery in and switch the button on the back to “ON” then it can works. The bottoms are made of synthetic rubber for keep the alarm from slipping.
eBay
Ewelink ZigBee Door Window Sensor Contact Sensor Security Burglar Alarm Magnetic Door Sensor Support Home Assistant Zigbee2mqtt
Aliexpress UK
SONOFF Zigbee 3.0 USB Dongle Plus Stick Zigbee TI CC2652P+CP2102 (N) Coordinator. SONOFF Zigbee 3.0 USB Dongle Plus TI CC2652P + CP2102(N) Smart Universal Gateway. SONOFF SNZB-02 Zigbee Temperature and Humidity Sensor APP Remote Monitor 3PCS.
eBay
CPVAN PIR Infrared Motion Detector Alarm 120 high decibel Home burglar Alarm Motion Sensor with remote control and Door Sensor
Aliexpress UK