---
product_id: 88584449
title: "Door Chime When Door Opens, Door Opened Alarm for Home/Business Office/Bedroom Entering, 1-Sensor + 1-Receiver with 500FT Range,58 Chimes,5-Volume Level, Entry Alert for Kids/Toddler/Dementia Safety"
brand: "secrui"
price: "$41.64"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/88584449-door-chime-when-door-opens-door-opened-alarm-for-home
store_origin: US
region: United States of America
---

# 400ft wireless range Adjustable volume up to 110dB 52 chime options Door Chime When Door Opens, Door Opened Alarm for Home/Business Office/Bedroom Entering, 1-Sensor + 1-Receiver with 500FT Range,58 Chimes,5-Volume Level, Entry Alert for Kids/Toddler/Dementia Safety

**Brand:** secrui
**Price:** $41.64
**Availability:** ✅ In Stock

## Summary

> 🔔 Elevate your entry alerts—because every arrival deserves a grand entrance!

## Quick Answers

- **What is this?** Door Chime When Door Opens, Door Opened Alarm for Home/Business Office/Bedroom Entering, 1-Sensor + 1-Receiver with 500FT Range,58 Chimes,5-Volume Level, Entry Alert for Kids/Toddler/Dementia Safety by secrui
- **How much does it cost?** $41.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/88584449-door-chime-when-door-opens-door-opened-alarm-for-home)

## Best For

- secrui enthusiasts

## Why This Product

- Trusted secrui brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **24/7 Security Alert System:** Instant door/window open notifications help protect your space and give peace of mind.
- • **Seamless 400ft Wireless Range:** Stay connected across your entire home or office without dead zones.
- • **Volume Control That Fits Your Space:** Five levels from whisper-quiet to attention-grabbing 110dB—perfect for any environment.
- • **52 Elegant Chimes to Match Your Vibe:** From classic Ding Dong to modern tunes, customize your alert sound effortlessly.
- • **Effortless Installation, Zero Hassle:** Plug-in receiver and adhesive or screw-mount sensor make setup a breeze—no tools, no stress.

## Overview

The SECRUI Door Chime M508+D7 is a wireless door/window sensor system featuring a 400ft range, 52 customizable chimes, and adjustable volume up to 110dB. Designed for easy plug-in installation with adhesive or screws, it provides instant alerts when doors or windows open, enhancing security and convenience for home or business environments.

## Description

SECRUI Door Chime, Door Open Sensor Chime for Business/Home When Entering, Adjustable Volume, Easy Installation, 400ft Range, 52 Chimes, M508+D7

## Features

- 【Easy to install】:Just plug the doorbell receiver into any standard outlet and tear the double- sided adhesive tape which on the back of door sensor( or screw mounted) and stick them to the door or window is fine,please take the insulating paper away before using the sensor
- 【24/7 Lifeguard for Your Family】: This child/ home door sensor alerts when burglar opens door and helps deter break-ins(entry alert chime activates when magnetic sensor separates)
- 【Adjustable Volume Control & 52 Chimes Options】:5 levels of adjustable volume from 0-110 dB.Offer 52 elegant music from the traditional"Ding Dong" to various well know chimes.Memory function: Keep the previous setted tune after re-plugging it
- 【Wide Working Range】:This wireless door open chime for home is up to 400 ft in open area, magnetic door sensor will automatically trigger the receiver when the magnetic strip is separated and the receiver will alerts immediately whenever the door or window is opened.Not suitable for wooden doors, or windows, doors and mailboxes with excessive clearance distances
- 【Mini Contact Sensor】: Magnetic door sensor (Size:3.0x1.0x0.60ininch),magnetic strip (Size:1.7*0.6*0.4 inch).They are small size and can be installed or placed at any indoor position to provide you with a door entry chime/alert system.Note：Do not use in the mailbox，The product only has volume and light alerts, no display function

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Batteries | 1 AAA batteries required. |
| Voltage | 120 Volts (AC) |
| Control Method | App, Touch |
| Noise Level | 120 Decibels |
| Mounting Type | Door Mount |
| Maximum Range | 396.24 Feet |
| Sensor Technology | Contact Sensor |
| Shape | Ellipse |
| Size | 1 Receiver+1 Sensor |
| Manufacturer | SECRUI |
| Part Number | SB-123 |
| Item Weight | 4.6 ounces |
| Product Dimensions | 4.5 x 2.3 x 1.7 inches |
| Item model number | M508+D017 |
| Batteries | 1 AAA batteries required. |
| Is Discontinued By Manufacturer | No |
| Style | 1 Receiver+1 Sensor |
| Material | ABS |
| Pattern | Simple |
| Installation Method | Screw-In & Self-Adhesive |
| Item Package Quantity | 1 |
| Type of Bulb | LED |
| Plug Format | A- US style |
| Special Features | Easy to Install |
| Usage | door chimes when door opens for home door chimes when door opens for business |
| Included Components | ‎‎‎1 × Sensor(battery included), 1 × Plug-in receiver,2 × Adhesive tape, 2 × Screw, 2 × Anchor, 1 × User manual |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | 23A 12V |

## Product Details

- **Color:** White
- **Brand:** SECRUI
- **Power Source:** Battery Powered
- **Compatible Devices:** Motion Detector
- **Battery Description:** 23A 12V

## Images

![Door Chime When Door Opens, Door Opened Alarm for Home/Business Office/Bedroom Entering, 1-Sensor + 1-Receiver with 500FT Range,58 Chimes,5-Volume Level, Entry Alert for Kids/Toddler/Dementia Safety - Image 1](https://m.media-amazon.com/images/I/51DsxSVpUIL.jpg)

## Questions & Answers

**Q: Can i turn it off  ? I don’t want it to ring when I am in the place that i can see my customer coming.**
A: You simply put the receiver in the place that you will be when you CANT see your customers and turn the volume down so you only hear it in that location...

**Q: Can this alert me if I leave the door open?**
A: No.  The sensor will only activate when they pass each other.  One is placed on the door itself (and is moveable) and the other on the frame of the door (stationary).  When the pass each other (and they have to be lined up right), it will activate the chime.

**Q: can each sensor trigger a different chime**
A: The table on the Amazon page claims that it can, but I have not been able to get it to. Following the directions to do this just changes the chime for all the sensors. Their instructions: "Fixed-tone: Adding a door sensor with a FIXED receiver ringtone... 1- Short press ringtone button, select tone, 2- Long press both buttons simultaneously (receiver beeps once), 3- Open and close sensor, 4- Open and close sensor again, 5 - short press volume button, 6 - Open and close sensor to check"

**Q: Can it be used on a rough door frame ?**
A: It's ok as long as the door sensor is pasted firmly on this rough door frame ,and the installation gap with magnetic strip is not exceed 0.4inch.

## Frequently Bought Together

- SECRUI Door Chime, Door Open Sensor Chime for Business/Home when Entering, Adjustable Volume, Easy installation, 400ft Range, 52 Chimes, M508+D7
- LiCB A23 23A 12V Alkaline Battery (5-Pack)
- Door Chime, Door Sensor Chime for Door Opens – Door Ringer with 500ft Operating Range 52 Chime Adjustable Volume Mute Mode LED Indicators –Entry Alert Chime for Business/Home

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-05*