Wireless Door Sensor Chime BITIWEND Alarm Contact Sensor Door Bell for Office/Home/Store,Door Open Chime Window Alarm…



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: 52 different ringtones with 4 sound level from 25~110dB to adjust, perfect for your daily use(INDOOR use only).

Amazon.com Price: $21.99 (as of 18/10/2021 20:37 PST- Details) & FREE Shipping.

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Kid Door Alarm

Keep an eye on your children safety, it will remind you when children open the door/window and sneak around.

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Door open alert for Elderly

It is perfect for elderly use, will notice you when they get out or come back home.

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Door Open chime for Store

There are 52 ringtones to choose for your store,and it is a great choice inform you when customers enter or leave.

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Entry Door Chime for Office

It is easily let you know when someone enter the door, even if you are not in the reception area.

4 Volume sound level and four “ding dong” ringtones are optional.

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How to Replace the battery of door sensor

1. Use the screwdriver (not included) to open the cover of door sensor.

2. Remove the battery out to replace a new one.

Battery type: CR1632 cell battery, 3V

Operating Voltage: 3V DC(1* CR1632 battery) Operating current: 3uA(standby), 15mA(Transmitting) Installation gap: ≤ 1cm Working temperature: -15 ℃ ~ 60 ℃ (non-waterproof) Working Humidity: ≤ 85%

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Note: Metal will interfere with the signal and shorten the transmission range.

Please place the transmitter in areas away from metals.

Working power of remote control:

Voltage: 110V

52 chimes to offer,you can choose any ringtones you prefer.if you want to change ringtone,please check below picture.

4 Sound Level from 30DB~110DB to select.

Expandable to multiple smart receiver or transmitter:

1* receiver

1* door sensor

1* tape

1* manuel

doorbell sensordoorbell sensor


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: 52 different ringtones with 4 sound level from 25~110dB 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.

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