eBay
TAIBOAN 433MHz Wireless Doorbell Home Music Door Bell Alarm Volume Adjustable Compatible With WiFi GSM Alarm System EU/US Plug
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
Door Lock Portable Alarm Door Stopper With Sirens 2 In 1 Door Securitys Device Travel Accommodation Door Stopper For Securitys
Aliexpress UK
Opened not used Batteries not included DAYTECH Wireless Motion Sensor Alarm, Door Alarm Sensor ,Bed Alarms for Elderly, Door Chime Welcome Buzzer Monitor for Shop Office Home Front Door Entry- 1 Receiver & 1 Motion Sensor
eBay
Aqara Water Leakage Sensor Water Leak Detector Sensor IP67 For Home Remote Alarm Security Sensor for Mi Home Homekit app
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
Aqara Water Leakage Sensor Water Leak Detector Sensor IP67 Smart Home Remote Alarm Security Soaking Sensor For Xiaomi mijia App
Aliexpress UK
🔔 Monitor Every Areas You Care with Wireless Magnetic Door and Window Alarm -- 400 feet long range far enough to cover every door and window in your house. Each magnetic door / window sensor receiver can pair up to 20 door alarm sensors and each door sensor can add unlimited receivers.
eBay
KERUI M525 Wireless DoorBell Burglar Alarm 32 Songs Optional 500ft Door Chime Home Security Welcome Smart Anti Theft Doorbell
Aliexpress UK
Experience peace of mind with our Compact Magnetic Door and Window Sensor Alarm. Designed for secure living, this alarm emits a piercing 120 dB sound when a door or window is opened beyond 1 cm, ensuring swift deterrence against potential intruders.
eBay
2Pcs Door Buffers Block Alarm Baby Safe Floor Gate Door Stoppers Wedge Shaped Stainless Steel Rubber Punch-free Home Door Stops
Aliexpress UK
Open the door and see if the siren sounds. 1/2/4/10X Alarm Kit (alarm unit & magnetic sensor). Sensor type: alarm. Alarm type: sound. When checking the settings, turn the host switch to the "ON" position.
eBay
KERUI M525 Wireless DoorBell Burglar Alarm 32 Songs Optional 500ft Door Chime Home Security Welcome Smart Anti Theft Doorbell
Aliexpress UK
Tuya WIFI Alarm System. The Alarm Host will alarm when the detector be triggered no matter what state the WIFI loudspeaker. When the door sensors ,PIR sensors,curtain detector or other sensor be triggered,this siren will sound.
eBay
Worked with Tuya Zigbee 3.0 WiFi Door Sensor Smart Life Window Magnetic Sensor Detector Home Door Sensor Via Alexa Google Home
Aliexpress UK