Professional Detector: This product takes the lead in adopting the digital reception mode, which is different from the products on the market. 1 x Detector. Adjustable Sensitivity: 5-Levels adjustable threshold, large range of frequency detection.
eBay
Scare off would-be intruders and alert the neighborhood with this wireless 105 dB indoor/outdoor siren. Loud 105 dB siren makes sure the alarm is heard when a security risk is detected. IP65 weather-resistant design, so the siren can be used indoors...
eufy
eBay
RTU5024 GSM Gate Opener Relay Switch Wireless Remote Control Door Access Door Opener Free Call 850/900/1800/1900MHz
Aliexpress UK
Default color:Black. This bracket is universal and can be installed on any side of the door. It can be used with or without an in-wall electrical box on any flat surface.
eBay
G202 2G Remote Control 200 Users GSM Gate Opener Relay Switch Door Access Wireless Door Opener By Free Call 850/900/1800/1900MHz
Aliexpress UK
Mounting bracket wedge for Ring Video Doorbell Elite. Condition is New. 3D printed. This wedge has 0º horizontal angle.
eBay
Wireless Doorbell for Home Outdoor USB Door Bell DC 5V RF433 MHz Pairing Remote Control 30 Ringtongs Volume Adjust Bed Care Call
Aliexpress UK
Multiple detection modes are available. ③ Large-sized filter lens. Optical Filter Lens + Infrared Red Light. Attach to Door Handle for Automatic Intrusion Alarm. Larger Filter Lens for Perfect Eye Protection.
eBay
Ewelink Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works With Zigbee2MQTT Alexa Google Need Gateway
Aliexpress UK
Compact Design & Hassle-Free Warranty Lightweight and portable, the M8000 fits easily into a pocket or bag, perfect for frequent travelers.
eBay
Mini Wireless Alarm Door Stop Alarm 120dB Great for Home Wedge Shaped Stopper Alert Security System Block Blocking System
Aliexpress UK
Mounting bracket (15º angle) for RING wired Video Doorbell model 5AT3T5. Condition is New. 3D printed. • NOTE:This doorbell mount is universal it can be installed on any side of the door. Its not intended to be used on siding walls.
eBay
Meian 110dB Siren Alarm, Home Security Alarm System, 433MHz Wireless Sirena Alarm for Home, Smart Life Security Protection
Aliexpress UK
Mounting bracket wedge for Ring Video Doorbell 3 aka RING3.Will not work with Ring Video Doorbell (1st or 2nd generation). This wedge has 0º horizontal angle. Can be used on any side of the door. Default spacer size 2.5" in white color.
eBay
433MHZ Rolling Code Wireless Numeric Keypad Door Lock For Entry Gate Numeric Keypad Garage Door Swing Gate Sliding Gate Opener
Aliexpress UK