YisTech Portable Battery Door Alarms for Dementia Patients/Kids Safety/Home Security,Wireless Caregive Pager Door Alarm Sensor for Elderly/Business/Home/Store (1 Sensor 1 Portable Receiver)

Price: $20.99
(as of Dec 17,2022 07:02:57 UTC – Details)

Wireless Door/Window Home Security Magnetic Alarm Sensor, Ideal Home Security selection for your home and family safety.
The magnetic contact sensor can be installed on the doors, windows and any other objects that can be opened and closed. The magnetic sensor activates when door and window separated. And the portable receiver will make sound to alerts you that the door/window is opened.The battery receiver is portable,bring it with you everywhere by keeping it in pocket/bag.
Easy installation: just put 3 AAA batteries (included) in the receiver, tear the double-side adhesive tape of the Door / Window sensor and stick them to any door or window.
VOLUME: 5 Levels (0-110 dB), unique mute-free mode, giving users a better home experience
58 Ringtones: The pairing method is simple. Users can set any music as doorbell ringtone according to personal preference.
Customize and Expandable. Each receiver can work with 20 door window magnetic sensors, each transmitter can pair with 20pcs receivers and set to different or same music.
How to change the Ring-tone/Re-pair:The default ring-tone is DingDong, Can change it easily, please refer to the following steps:
1. Put 3 AAA batteries (included) in the receiver.
2. Press the Music change button on the receiver to select desired tune.
3. Press the Volume Change button on receiver for 5 seconds. A chime and LED flashing will indicate the ready status.
4. Separate the magnet from transmitter sensor over 1cm until blue indicator lights up, You will hear the tune that you selected.
Specifications: 
Receiver Battery: 3 AAA Battery
Magnet Sensor Battery: 12V,23A Battery
Volume: 0-110dB
Range: 160ft (50m in an open area)
Frequency: 433 MHz ± 2MHz
Operating Temp: -10°C-60°C
Package list:
1x Portable Receiver
1x Door sensor
1x User Manual
Keep your home/office safety:wireless portable door sensor alarms offers a generous detection area of nearly 160 feet. You could hear doorbell chime as visitors or guests arrive to your home, store, office etc. It sounds to notify you someone enter into, or alert you intruder trying to entry your home. Or remind you when your Children/Elderly open the door/window and sneak around.
Multiple melodies&Loud chime-The receiver Unit has 58 ringtones for your choice. 5 adjustable volume levels from 0 dB to 110 dB.
Easy to use. No wiring, just put 3 AAA batteries (included) in the receiver,tear the double-side adhesive tape of the Door / Window sensor and stick them to any door or window.The magnetic sensor activates when door and window separated.
The battery receiver is portable,bring it with you everywhere by keeping it in pocket/bag.
Customize and Expandable. Each receiver can work with 20 door window magnetic sensors, each transmitter can pair with 20pcs receivers and set to different or same music. 100 Days Full Refund or Replacement (If the order is over 30 days, please contact us by email.).Not satisfied with our product? Return it to us within 100 days and get 100% of your money back!