how do you sinc two receivers to one sensor?

long press the volume key for 3 seconds,enter into learning mode, release the volume key, program starts. The user manual will be introduced in detail.

Can i use power bank as power source?

Yes, you can. Receiver of the bell using 3 5(AA) alkaline batteries or Micro USB supply power( not included), Infrared curtains using 3 7(AAA) alkaline batteries or Micro USB supply power( not included).

how do i buy the remote controller ?

You can buy this https://www.amazon.com/dp/B01HUS7RP0/ref=sr_1_1?ie=UTF8&qid=1529542599&sr=8-1&keywords=B01HUS7RP0

Does the wind cause this to ring?

Thank you for your attention to HENDUN motion sensor doorbell. The wind will not cause the ringing. Thanks again.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Motion Sensor Doorbell for Business, Bed Alarm for Elderly Dementia | Door Chime for Business, Entry Alert Store Welcome Buzzer Monitor , Fall Detection Alarm for Seniors , Caregiver Reminder

Product ID: 72915073

Details

Brand
HENDUN
Color
1 Receiver & 1
Compatible Devices
Motion
Power Source
Battery
Product Dimensions
3.94"L x x

📶918ft wireless range

🔔36 ringtones + 4 volume levels

🦶13-26ft motion detection range

€ 56.95

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

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Description

🔔 Stay Alert, Stay Connected — The Ultimate Caregiver’s Smart Doorbell

DUAL POWER OPTIONS - Powered by AAA batteries or USB-C for uninterrupted operation, even during power outages.
SMART FALL PREVENTION - Detects foot movement on the floor, reducing false alarms and protecting seniors with dementia or sleepwalking tendencies.
EFFORTLESS WIRELESS SETUP - Install in minutes—no wires, no hassle, just instant alerts.
UNMATCHED LONG RANGE FREEDOM - Stay connected up to 918ft away—perfect for caregivers who need mobility and peace of mind.
CUSTOMIZABLE ALERTS FOR EVERY SETTING - Choose from 36 melodies and 4 volume levels, including silent LED mode for discreet monitoring.

The HENDUN Motion Sensor Doorbell is a versatile wireless alert system designed for business entrances and senior care. Featuring a 918ft transmission range, 36 customizable ringtones, and a sensitive motion sensor with a 13-26ft detection radius, it offers reliable fall detection and entry monitoring. Its dual power supply ensures continuous operation, making it ideal for caregivers, retail stores, and home security alike.

Specifications

ASIN	B077VV8ZJ1
Audible Noise	105 db
Battery Description	Alkaline
Best Sellers Rank	#29,580 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #33 in Door Bells Chimes
Brand	HENDUN
Color	1 Receiver & 1 Transmitters
Compatible Devices	Motion Detector
Control Method	Remote
Customer Reviews	4.4 4.4 out of 5 stars (1,473)
Item Dimensions L x W x H	3.94"L x 1.97"W x 2.76"H
Item Weight	7.04 ounces
Manufacturer	Changzhou Hengdun Electronic Technology Co Ltd
Maximum Range	25.92 feet
Mfr Part Number	43239-217649
Model Number	43239-217649
Mounting Type	Wall Mount
Power Source	Battery Powered
Sensor Technology	Motion Sensor
UPC	664248632944
Unit Count	1 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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€ 56.95

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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