1 Wireless PIR Motion Detector with 9V Battery. The host supports up to 30pcs wireless detectors, 8pcs remote key fobs, 4 doorbell buttons. 2 Wireless Remote Key Fobs with 23A 12V Battery. 2 Wireless Door Sensors with 23A 12V Battery.
eBay
Door Window Wireless Burglar Alarm with Magnetic Sensor Alarm 108dB High Volume Door Open Detectors Home Security Device
Aliexpress UK
Simply attach the fixing plate to Door. It detects door opening. Get Instant siren Alerts for unauthorized door opening. Loud Siren to deter intruders and alert those nearby. Easy Arm/Disarm by remote up to 50m .
eBay
Smart Home Doorbell Wireless Outdoor Doorbell IP65 Waterproof Door Bell 39 Songs Smart Security Alarm Door Bell Chime Kit
Aliexpress UK
The Voxon Wireless Door and Window Alarm Sensor 2 Pack operates in two modes - magnetic door and window alarm sensor. It is powered by 8 LR44 batteries and has a sound level of 120 dB. The compact design of 6.1 x 3.3 x 1.7 cm makes it easy to install on doors and windows for added security. The alarm sensors provide peace of mind against potential intruders, making it a reliable choice for home security and surveillance systems.
eBay
Tuya Zigbee Door Sensor Window Entry Sensor Security Burglar Door Sensor Alarm Smart Life Magnetic Door Sensor Alexa Google Home
Aliexpress UK
Wireless Frequency: 433MHz. Can remote arm or disarm by phone, and with intercom and voice monitoring function. 2.4" TFT LCD screen display and voice prompt for all operations. Support external wired siren, with squealing alarm sound.
eBay
KERUI M525 Wireless DoorBell Burglar Alarm 32 Songs Optional 500ft Door Chime Home Security Welcome Smart Anti Theft Doorbell
Aliexpress UK
Weight: 128g. • Portable Doorstop Preasure Alarm : The alarm system can be easily carried around, making it convenient to use in different locations. You can use it as common door stopper when turn down the ON/OFF switch,hold door in open position.
eBay
Tuya Zigbee Door Sensor Window Entry Sensor Security Burglar Door Sensor Alarm Smart Life Magnetic Door Sensor Alexa Google Home
Aliexpress UK
100 DB Instant Alarm. Easily mounted by adhesive tape to window or door. YOU CAN USE IT IN PARALLEL OR VERTICAL DIRECTION ON WINDOW OR DOOR.
eBay
Ewelink ZigBee Door Window Sensor Entry Sensor Security Burglar Door Sensor Alarm Smart Life Magnetic Door Sensor Support Alexa
Aliexpress UK
Can be used as a door stop alarm and door stopper, A protector around you. Just put the door stop security Alarm under the door and turn on the switch. It is the high damping rubber at the bottom which can prevent the door sliding.
eBay
KERUI M525 Wireless DoorBell Burglar Alarm 32 Songs Optional 500ft Door Chime Home Security Welcome Smart Anti Theft Doorbell
Aliexpress UK
Weight: 128g. • Portable Doorstop Preasure Alarm : The alarm system can be easily carried around, making it convenient to use in different locations. You can use it as common door stopper when turn down the ON/OFF switch,hold door in open position.
eBay
2.4GHz WiFi Wireless Video Doorbell Two-way Intercom Doorbell Camera APP Control Smart Door Bell for Home Security Alarm System
Aliexpress UK