It will sound once again when the door or window is closed and reopened. - 110dB alarm siren when window or door is opened. To disarm the unit, move the switch to OFF position. Make sure the window, door or cabinet is closed before rearming.
eBay
Aqara Water Leak Sensor E1 ZigBee 3.0 Water Immersing Detector Alarm Security Soaking Sensor Smart Home for Mi Home Homekit APP
Aliexpress UK
Test: Sounds a "Didi-Didi" test beep from the siren. - Triggers siren instantly when separated by over 1mm from the magnetic strip. A: No, this siren work as an alarm system, it can work with wireless sensors to protect your house.
eBay
Aqara Water Leak Sensor ZigBee Water Immersing Detector Alarm Security Soaking Sensor Home Assistant for Xiaomi Mi Home Homekit
Aliexpress UK
Totally wireless, provides simple installation without any tools, using the included self-adhesive pads. Magnetic sensor detects door/window opening. High security theft deterrent. WILL NOT function.
eBay
NEO Tuya Zigbee or Wifi USB Siren Alarm Sensor Sound Light Sensor Built-in 90DB Remote Control Home Security Protection Detector
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 Leak Sensor ZigBee Water Immersing Detector Alarm Security Soaking Sensor Smart Home For Xiaomi Mi Home Homekit APP
Aliexpress UK
1 x Detector Main Body. Item Type: Wireless WiFi Door Window Sensor. Wireless Type: Only supports 2.4 GHz WIFI. Smart Linkage: The wireless security door sensor enables smart scenes by linking the sensor with other devices, such as triggering lights on when door and window are opened.
eBay
Aqara Zigbee Submersion Sensor Water Overflow Leak Detector Alarm Security Immersion Sensor IP67 Waterproof for Mi Home Homekit
Aliexpress UK
eBay
Mini Metal Alarm Clock Creative Student Electronic Alarm Clock Bedside Alarm Clock Portable Travel Alarm Clock
Aliexpress UK
It will provide a visible deterrent with flashing LEDs and a loud 120dB alert when an alarm goes off. SA-1168-WS03-Set - Smart Wireless Doorbell and Alarm System. 1 x Doorbell button SA-1168-P3. Waterproof doorbell with transmission distance of 200m.
eBay
Alarm Carbon Monoxide Alarm Arbon Monoxide Alarm Detector CO Alarm Detector Powered by Battery with LCD Display Voice Warning
Aliexpress UK
2x Door & Window Entry Alarm Set. They also have a simple on/off switch, an instant alarm of 105 decibels. with double sided adhesive mounting pads.
eBay
Tuya Zigbee/WiFi Door Sensor and Tuya Smart Life Window Magnetic Sensor Detector Wireless Home Door Sensor Via Alexa Google Home
Aliexpress UK