Arm key: Press it, once triggered, alarm will bell 110db voice. SOS key: Press it, the alarm will bell 110db voice though alarm is not triggered. Not only an antitheft alarm but also a doorbell, in doorbell mode, the vibration alarm detects vibration and sounds "Dingdong".
eBay
Waterproof outdoor Security Box: TTlock/Tuya Fingerprint Bluetooth gateway Key Box with App Control, Remote Wall Mount Padlock
Aliexpress UK
(Option to add Wireless Siren). 📢 Built-in Indoor Siren. 🔊 Optional Outdoor Wireless Siren. (In the UK, SIM deal are available from £1/Month). 🚨High-decibel Siren. Function as Regular Alarm with Wireless Sensors.
eBay
Earykong 433MHz Wireless Remote Controller For PG103 / W2B Home Security WIFI GSM Alarm System
Aliexpress UK
This type of walkie-talkie earpiece is durable and lightweight, it is often used by security staff and bouncers, allow them to communicate hands free and in a discreet manner. Featuring K type plug, widely compatible with Kenwood, BAOFENG.
eBay
2pcs KERUI RC531 Wireless Portable Remote Control 4 Buttons Keychain For WIFI GSM PSTN Home Security Alarm System
Aliexpress UK
HTZSAFE Wireless Security Alarm System. HTZSAFE has specialized insolar-powered and wireless alarm systems for over two decades. Supports up to32 HTZSAFE sensors per receiver, and each sensor can be paired with an unlimited number of receivers—ensuring complete coverage.
eBay
GauTone TUYA WiFi 4G GSM Alarm System for Home Smart Life Security with PIR Wireless Solar Siren Support Tuya Remote Control
Aliexpress UK
May contain minor signs of use. With long-lasting battery life, Blink Outdoor runs for up to two years on two AA lithium batteries (included). Most Blink cams are designed to work with 2.4 GHz Wi-Fi networks.
eBay
KERUI W181 Security-protection Alarm for Home WiFi GSM Alarm System Smart Home Tuya Smart App Remote Control PIR Motion Sensor
Aliexpress UK
2x Motorola DP4401e. 2x Antennas. 2x Impres Li-ion Batteries with good capacity. 2x NEW Accessory port covers.
eBay
Staniot 433MHz High Quality Portable 4 Buttons Keychain Wireless Remote Control For WIFI GSM Home Burglar Security Alarm System
Aliexpress UK
This Listing is for a single coloured topper for radios. just the coloured part is included and slips onto the top of antennas. this should fit antennas of most sizes excluding whip antennas. Radio and antenna not included.
eBay
433MHz Wireless Remote Control Keychain Metal Key Disarm ARM Controller For Home Burglar Security Alarm System
Aliexpress UK
There are 7 levels adjustable sensitivity from gently touch to push or beat. Waterproof Bike Alarm with Remote. Alarm Battery:4.2V 700mAh lithium battery. Remote Battery : 27A(12V) Alkaline battery.
eBay
Tuya Alarm System WiFi GSM Security Alarm System Home Burglar Alarm For House Office SMS APP Remote Control Work With Alexa
Aliexpress UK