Built in PIR motion sensor. The motion detector power by 4 AA batteries (not included). When the alarm is triggered,it will sound for 20 seconds. Loud 120 db alarm. 110 degree wide angle.
eBay
IMOU Home Wifi Alarm System Zigbee 3.0 Real Time App Push Motion Sensor Alarm Siren Window Door Sensor IP Camera Work with Alexa
Aliexpress UK
Plug & Play system with Built-in Motion sensor and Siren. Keep your Properties safe with our alarm system, designed for quick and easy installation. Simply attach the fixing plate to your wall. It detects motion inside the area.
eBay
KERUI Wireless Burglar Alarm System Home Alarm W202 Tuya Smart WiFi GSM Alarm for House With Motion Detector Door Sensor Alexa
Aliexpress UK
1 x PIR Motion Sensor Alarm Unit. ✅Effective Burglar Deterrent: Deter intruders and protect your property with this easy-to-use motion sensor alarm. We are specialist in hardware, electrical, household, gardening, personal care stuff, furniture etc.
eBay
Free Shipping 433MHz Wireless Motion Sensor Alarm, For Home Burglar Security PSTN/GSM/Wifi/G90B Alarm System, never false alarm
Aliexpress UK
Long battery using ensure that you don't have to keep on top of the battery and taking the driveway alarm with you on a camping trip. Waterproof Motion Detector. SUPER EASY INSTALLATION: No wires to run, no installation hassles.
eBay
Easy Setup: Install in minutes all by yourself. The entry sensors attach to doors and windows, while the motion sensor and keypad can be secured to walls via the included mounts. No Monthly Fees: Designed to protect your home as well as your wallet,...
eufy
Ideal for use in entryways, garages, sheds, or any area needing extra security. Wireless, infrared motion detection. 105 dB loud alarm to deter intruders. If motion is detected, the alarm waits 5 seconds before sounding, allowing authorized users to disarm it via remote.
eBay
Protection That Lasts: The included battery provides up to 2 years of power for round-the-clock security. Extensive Coverage: Detects motion within a 100° field of view up to 30 feet away—more than enough to secure an entire room of your home....
eufy
The motion detector power by 1 9V batteries (not included). Loud: 110 Db alarm. 2pcs x Alarm Sensor. When the alarm is triggered,it will sound for 20 seconds. Other accessories demo in the picture is not included.
eBay
KERUI 4G/WiFi Home Alarm System with 7 Inch Touch Screen Tuya Smart Wireless Home Burglar Alarm with Motion Detector Door Sensor
Aliexpress UK
The host supports up to 30pcs wireless detectors, 8pcs remote key fobs, 4 doorbell buttons.
eBay
KERUI W181 Alarm System Secutrity Home WIFI GSM Alarm Tuya Smart Motion Detector Door Sensor Burglar IP Camera Work Alexa Google
Aliexpress UK
Plug & Play system with Built-in Motion sensor and Siren. Keep your Properties safe with our alarm system, designed for quick and easy installation. Simply attach the fixing plate to your wall. It detects motion inside the area, and you can add an optional Door or vibration sensors for threats from outside for enhanced security.
eBay
KERUI W184 4G WIFI GSM Alarm System Unit Wireless Home Tuya Smart APP Control Motion Sensor Burglar Support Alexa Motion Sensor
Aliexpress UK