--- product_id: 72915073 title: "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" brand: "hendun" price: "39043CFA" currency: XOF in_stock: true category: "Hendun" url: https://www.desertcart.sn/products/72915073-motion-sensor-doorbell-for-business-bed-alarm-for-elderly-dementia store_origin: SN region: Senegal --- # 918ft wireless range 36 ringtones + 4 volume levels 13-26ft motion detection range 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 **Brand:** hendun **Price:** 39043CFA **Availability:** ✅ In Stock ## Summary > 🔔 Stay Alert, Stay Connected — The Ultimate Caregiver’s Smart Doorbell ## Quick Answers - **What is this?** 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 by hendun - **How much does it cost?** 39043CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/72915073-motion-sensor-doorbell-for-business-bed-alarm-for-elderly-dementia) ## Best For - hendun enthusiasts ## Why This Product - Trusted hendun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **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. ## Overview 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. ## Description HENDUN Motion Sensor Doorbell , Bed Alarms for Elderly Dementia Patients , Door Chime for Business,Entry Alert Store Welcome Buzzer Monitor , Fall Detection Alarm for Seniors , Caregiver Reminder - desertcart.com ## Features - ✅EASY, FAST, WIRE FREE INSTALLATION door sensor detects motion and sends a signal to the receiver. You may want to take a look at the two launcher SKUs B09YMNCXZV. Pre-paired: You can put the motion sensor detector at the room of alzheimers sleepwalking elderly and put the receiver in your room. - ✅SELECTABLE RINGTONES with VISUAL & AUDIO ALERTS - Fully customizable for day and night use. Features 4 adjustable volume levels (25dB–113dB) and a Silent/Light-Only mode (LED flash) to avoid startling sleeping patients. Choose from 36 melodies for home care or 5 loud "Welcome" songs perfect for retail stores and business entrances. - ✅ 918FT LONG-RANGE FREEDOM FOR CAREGIVERS – No need to sit by the bedside all day. With a transmission range of up to 918ft, you can cook in the kitchen, watch TV in the living room, or rest in another room while staying connected. The portable receiver alerts you immediately when motion is detected, giving you peace of mind and more personal freedom. Detection range of the infrared sensor approximately 13-26ft to keep you informed and safe. - ✅ EARLY FALL PREVENTION FOR SENIORS – Provide vital seconds to help your loved ones before they fall. Unlike traditional bed pressure pads that trigger false alarms when patients roll over, our wireless motion sensor can be placed on the floor to accurately detect when feet touch the ground. Ideal for monitoring elderly parents with dementia or sleepwalking habits without disturbing their sleep. - ✅ DUAL POWER SUPPLY – Never worry about power outages. The receiver can be powered by standard 3x AAA batteries (portable) or a USB-C cable (not included). Adjustable Volume and Light Mode 4 STAGES ADJUSTABLE VOLUME (Loud/High/Middle/Low ) 113-25dB. - ✅ VERSATILE 918FT LONG-RANGE PROTECTION FOR CAMPING & HOME – Perfect for camping security, mailbox alerts, basement door monitoring, and tracking pets (cats/dogs). With a 918ft transmission range, the sensor instantly alerts you to intruders like wolves or bears, or when mail arrives. The portable receiver ensures you never miss important movements, giving you peace of mind at home or in the wild. Infrared sensor detection range: approximately 13-26ft to keep you informed and safe. ## Technical Specifications | Specification | Value | |---------------|-------| | 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 | ## Product Details - **Brand:** HENDUN - **Color:** 1 Receiver & 1 Transmitters - **Compatible Devices:** Motion Detector - **Power Source:** Battery Powered - **Product Dimensions:** 3.94"L x 1.97"W x 2.76"H ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51zLfQyHVVL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: how do you sinc two receivers to one sensor?** A: 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. **Q: Can i use power bank as power source?** A: 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). **Q: how do i buy the remote controller ?** A: You can buy this https://www.amazon.com/dp/B01HUS7RP0/ref=sr_1_1?ie=UTF8&qid=1529542599&sr=8-1&keywords=B01HUS7RP0 **Q: Does the wind cause this to ring?** A: Thank you for your attention to HENDUN motion sensor doorbell. The wind will not cause the ringing. Thanks again. ## Frequently Bought Together - HENDUN Motion Sensor Doorbell , Door Chime for Business, Store Welcome Buzzer Monitor, Commercial Door Entry Alert,Motion Detector Alarm, Caregiver Reminder for Elderly, Visitor Bell Dinger - Wireless Motion Sensor Door Chime: Business Entry Doorbell Indoor Motion Detector Buzzer (500Ft Range, 32 Tunes, 5 Level Volume) Store Entrance Alert Bell Bed Alarm for Elderly Dementia Patients - Door Chime, Satisure Wireless Door Open Contact Sensor Alarm Chime with 600 FT Range 58 Chimes 5 Volume Levels LED Indicators, Door Ringer Alert for Business/Store/Home/Office When Entering --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/72915073-motion-sensor-doorbell-for-business-bed-alarm-for-elderly-dementia](https://www.desertcart.sn/products/72915073-motion-sensor-doorbell-for-business-bed-alarm-for-elderly-dementia) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-08*