Product: Door Chime, Door Sensor Chime for Door Opens – Door Ringer with 500ft Operating Range 52 Chime Adjustable Volume Mute Mode LED Indicators –Entry Alert Chime for Business/Home/Office
Brand: SECRUI
Color: White
This door open alarm for home/business/office /retail store /kids installs tool-free to nearly any 
  door or window to notify you of any unwanted entry. The wireless and portable design allow you 
  to install the wireless door entry alert in any section of your home, or business.
  
  Expandable (up to door sensor 40pcs)
  You can choose one for the front door and a different one for the back door. Then you will be able 
  to distinguish which door is being opened.
  
  LED Indicator for the Hearing Impaired )
  Secrui entrance alert/ Exit alarm features a LED indicator that creates a visual LED alert, allowing 
  the hearing impaired to take advantage of the system.
  
  Parameters of Doorbell Receiver:
  52 tones optional
  Colorful LED indicator
  Standby current :<3mA Working current:<11mA
  Volume Range: 0~110dB 
  Radio frequency:433MHz
  Receiver Size: 4.5x2.3x1.7in 
  Working Voltage: 110V~240V,50-60Hz AC
  Operation range:500ft (in open area)
  
  Parameters of Door Sensor: 
  Non-waterproof
  Working Humidity: ≤ 85%
  Transmitter Size: 3.0x1.0x0.60in
  Working temperature: -4°F~122°F
  Working range: 500 ft (in open area)
  Expandable door sensors: < up to 40 
  Working current: 3uA(standby), 15mA(Transmitting) 
  
  Tip:Ensure the distance between door sensor and magnet part not exceed 0.4inch
 If you still have questions about the open door window alarm for home security,please contact 
 with our customer service team to get more information .
 
 Package:  
  1* Secrui Doorbell Receiver 
  2 *Secrui Magnetic Door Sensor(battery -included) 
  1 * User Manual 
 
Optimal Solution for a Safe Environment: Secure your home with SECRUI’s door chime with adjustable volume! Easy to use and fully adjustable, these door chimes when the door opens for home are a practical solution for monitoring any door entry, whether it’s your toddler looking for his parents or a dangerous burglar.
How it Works: These door sensor chimes feature a magnetic strip that is automatically triggered by the receiver when it’s separated. The receiver instantly alerts the person in charge by playing one of the 52 chimes that you can pick from.
Wide Range of Action: Our door chime for business when entering has a 500ft operating range that is suitable for small and medium-sized homes, as well as shops and apartments. You can also use these door alarm sensor with additional SECRUI door sensors or doorbells for more safety and security.
Pick Your Chimes: The door open chimes comes with 52 different chimes, including a special Christmas edition! To make it a more comfortable experience, our entry alert chime features 5 levels of volume that you can adjust anywhere from 0-110 dB so you can create a comfy environment for your family. The wireless door chimes also features LED indicators that work together with the sound so you can notice it quickly.
Double Installation Method: This door chime for business when entering comes with a small magnetic strip that can be installed on the wall using the screw system included in the pack. Alternatively, you can tear the double-sided adhesive tape on the back to attach the system to the door or window that you want to monitor.

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