Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bells Chimes for Office Home Store Door Open Chime Window Alarm Operate Range 600ft With 58 Chimes 5 Volume Level 2 Sensor 1 Receiver

Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bells Chimes for Office/Home/Store,Door Open Chime Window Alarm Operate Range 600ft With 58 Chimes 5 Volume Level,1 Sensor + 1 Receiver Alarm Contact Sensor: The operating wireless range is 600ft in OPEN area with LED indicator,ideal door sensor chime for office/home/store. Loud Sound: 58 different ringtones with 5 sound level from 0~110dB to adjust, perfect for your daily use(INDOOR use only). Easy Intallation: Pls install it AFTER pairing.Plug the receiver into socket,tear off the tape behind door sensor then paste on the door. Expandable: Each door sensor or receiver can be expandable,you can use them with additional BITIWEND door sensors or doorbells. 1 year quality service: Any problems about door open chime,pls contact with our customer service team to get a full refund or replacement.