One machine two networks - Support WIFI/GSM/GPRS/2G. Also work with Amazon Alexa. Uninterrupted network, safer and more assured. Built-in alarm siren: 110dB. GSM network frequency : 850/900/1800/1900mHz Support 2G GSM network.
eBay
Tuya Smart Security Burglar Alarm System WiFi GSM Home Wireless Alarm Kit 24-hour APP Real-time Alarm Supports Volume Adjustment
Aliexpress UK
Remote SMS settings. 11 National languages : Chinese, English, German, Russian, Spain, Poland, Italy, French, Portugal, Greece, Romanian.
eBay
HTZSAFE Solar Wireless Alarm System-800 Meters Wireless Range-100 Meters Sensor Range-Solar Siren & Strobe-DIY Home Security
Aliexpress UK
Tuya Wifi GSM alarm system. Color Screen Display. Support GSM SIM Card and 2.4G Wifi Network. Support Temperature and Humidity Display. Support TFT Touch Keyboard and Fingerprint Arming. Support 100 Wireless Detector and 4 Wired Detector.
eBay
Dragino Original LDS02 -- LoRaWAN Door Sensor for Door Open/Close detect Open duration alarm For Wireless Alarm and Security
Aliexpress UK
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
Mini Wireless Alarm Door Stop Alarm 120dB Great for Home Wedge Shaped Stopper Alert Security System Block Blocking System
Aliexpress UK
Yale Wireless Shed And Garage Alarm - White - SAA5015. It is simple to install, can be wall-mounted or be freestanding. The Yale Shed and Garage Alarm is standalone wire free and battery operated alarm so there is no need to run any cables.
eBay
KERUI 7-inch IPS Large Touch Screen Home Alarm Panel 4G LTE GSM WiFi Wireless Alarm Security System Burglar Tuya Smart Alexa
Aliexpress UK
Loud alarm signal – approx. 110 dB siren. Delay Setting: 10 second delay to enter security code before 110 decibel siren is sounded. For Shed Garage ,Caravan Security Keypad Alarm. Suitable for: shed, garage, barn door or windows.
eBay
TAIBOAN Solar+Battery Dual Power Siren | 433MHz Wireless Alarm with Magnetic Base, Compatible with GSM/WiFi Alarms
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
KERUI Security Home Wireless Alarm System Siren Standalone Garage Burglar Alarm Horn Alert with PIR Motion Sensor Detector
Aliexpress UK
The SIM card must have sufficient credit to send and receive SMS or call alerts for optimal functionality of the security system. giving you a chance to protect your Vehicle and its contents. Wireless Sensors, Plug & Go Power connection option.
eBay
Smart Home Wireless Alarm Remote Control Work With PG103 PG107Alarm Control Home Security Alarm System 433MHz
Aliexpress UK