Prevent unwanted intruders : It works as door/window open alarm, When the alarm is triggered, it emits an extra loud 130dB sound siren and blinding flashing light. Simply hang the alarm from the inside to turn your door into its very own security system.
eBay
Up for sale is a 2-pack of Door & Window Magnetic Alarm Sensors. These easy-to-install alarms are perfect for adding extra security to your home, office, apartment, garage, dorm, or RV. Features: • Loud 120dB alarm • Magnetic sensor triggered • Ideal for doors & windows • Simple peel & stick installation • ON/OFF switch • Uses 3 LR44 batteries (per unit) • Compact design Condition: • New in original packaging • Packaging shows minor shelf wear (see photos) • Both units included Great for added peace of mind at a budget price. Ships fast and secure.
eBay
The Ring Alarm Contact Sensor 2nd Gen 2 Pack is a white, door alarm system that offers smart home security. With Z-Wave connectivity and Wi-Fi features, this sensor provides reliable protection for your home. Powered by 2 CR2032 Lithium Coin Cell batteries, this Alarm Contact Sensor from Ring is a convenient and effective addition to your home security system.
eBay
The Touch Sensor Door Window Security Alarm is a set of 2 door/window alarm sensors with a 120dB sound model, perfect for adding extra security to your home. The alarm does not come with batteries. Requires 3 AAA For Each Unit. These sensors are designed to detect any unauthorized entry attempts, making it a reliable addition to your home security system. Please Refer To All Photos To Evaluate This Product & Additional Information. If You Have Any Questions, Comments Or Concerns Please Don't Hesitate To Message. Thank You For Viewing Our Item!
eBay
eBay
Easy install: No wiring needed, just put 9v battery in and switch the button on the back to"onthen it can works. The bottoms are made of synthetic rubber for keep the alarm from slipping. 1 x Door Stop Alarm(Not Including Battery).
eBay
Wireless Vibration Alarms With Remote By Detecting Gentle Touch, Push or Beat (Vibration Triggered);. Not Only a Safety/Antitheft Alarm, But Also a Doorbell, In Doorbell Mode, The Vibration Alarmdetects Vibration The Host Sound"Dingdong".
eBay
Each remote features multiple buttons for different lock functions, allowing you to secure and monitor your door from a distance. The lock unit includes a sturdy mounting plate for stable installation and operation.
eBay