Product Review

Secrui wireless door open chime is priced affordably to protect every entryway in your home.
With its simple peel and stick installation, compact design and loud alarm, the Mini door entry
alarm with chime is an effective solution to home security.
  Magnetically triggered alarm to guard your entry ways
  Simple peel and stick installation
  Select alarm or chime
  Loud 100dB alarm
  Alarm/chime sounds when the protected door or window is opened
  1x 23A 12V alkaline battery (included)
 
  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:400ft (in open area)
 
  Parameters of Door Sensor: 
  Non-waterproof
  Working Humidity: ≤ 85%
  Door sensor Size: 3.0x1.0x0.60in
  Working temperature: -4°F~122°F
  Working range: 400 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 door sensor chime for business/home secruity , please contact
with our customer service team to get more information .

Package:  
  1* Secrui Doorbell Receiver 
  1 *Secrui Magnetic Door Sensor(battery -included) 
  1 * User Manual