Open the door and see if the siren sounds. 10X alarm unit. Sensor type: alarm. 10x magnetic sensor. Alarm type: sound. Alarm unit: 4.5X1.5X1.5CM. Magnetic sensor: 9X3X2CM. Fix the host to the door / window with double-sided tape.
eBay
HOT Wireless Door Alarm With Remote Control Anti-Theft Door And Window Security Alarms Home Security Sensor Burglar Alarms
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
Safety Wireless Door Alarm for Home Security Personal Security Window Alarms Sensor Burglar Door Alarm for Pool, Cars, Sheds
Aliexpress UK
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
130DB Door Window Entry alarm Wireless Remote Control Door Sensor Alarm Host Burglar Security Alarm System Home Protection Kit
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
Outdoor Door Window Alarm Sensor Security With Remote Control Burglar Alarm Magnetic Sensor Door Alert System Home Protection
Aliexpress UK
24/7 Lifeguard For Your Family -- The Door Alarm Sensor Will Detect The Door/window, And Will Be Triggered To Send Out A Signal When The Door/window Opening. We Use Multi-color Led Reminders To Help People With Poor Hearing Find Guests Or Thieves Coming.
eBay
KERUI 10pcs Independent Door Sensor Alarm 90dB Door Magnetic Sensor Wireless Home Windor Entry Anti Thief Burglar Security Alarm
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
MOES Tuya ZigBee Smart Window Door Gate Sensor Detector Smart Home Security Alarm System Smart Life Tuya App Remote Control
Aliexpress UK
1) 17-chord music chip and 40mm loud speaker for pleasant and louder alerts Remote transmission range up to 280m/ 918ft in open space. 2) 4 independent LEDs to distinguish sensing zones, with the option to synchronize sound alerts 3) 5 stages adjustable volume from 113 ~ 25dB. 4) Infrared + microwave radar composite dual detection for lower false alarm rates 5)Added silent and vibration reminder.More privacy,no disturbance ,vibration reminder for discreet alerts 6)Expandable.The receiver can learn from up to 32 wireless sensors like PIR motion, magnetic or vibration sensor as well as up to 8 remote controllers. 7) Low battery indication. Both the sensor and receiver can be powered by battery or plugged into a USB interface. 8) IP66 Waterproof ideal for outdoor use.
eBay
PGST WiFi 4G Tuya Smart Life Home Alarm Security System Kit Alexa Home Automation Alarm Security Protection Door Motion Sensor
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
Zigbee Door Window Sensor Open Close Detector Smart Home Security Alarm Burglar Door Sensor Works With Alexa Home Assistant Z2M
Aliexpress UK