---
product_id: 618879048
title: "SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 1 Sensor"
brand: "sanjie"
price: "HK$410"
currency: HKD
in_stock: true
reviews_count: 13
category: "San Jie"
url: https://www.desertcart.hk/products/618879048-sanjie-wireless-door-open-alarm-sensor-chime-800ft-operating-range
store_origin: HK
region: Hong Kong
---

# 55 customizable ringtones 800FT wireless range 5 volume levels up to 110dB SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 1 Sensor

**Brand:** sanjie
**Price:** HK$410
**Availability:** ✅ In Stock

## Summary

> 🚪🔔 Never miss a moment—secure your space with style!

## Quick Answers

- **What is this?** SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 1 Sensor by sanjie
- **How much does it cost?** HK$410 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/618879048-sanjie-wireless-door-open-alarm-sensor-chime-800ft-operating-range)

## Best For

- sanjie enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Reliable:** Up to 100,000 triggers with an ON/OFF switch for flexible, long-lasting security.
- • **Effortless Installation:** Pre-paired sensor and receiver with adhesive tape for instant setup—no wiring needed.
- • **Seamless 800FT Coverage:** Stay connected across large homes or offices without signal dropouts.
- • **Customizable Alert Tones:** Choose from 55 ringtones to match your vibe or environment.
- • **Adjustable Volume Control:** From discreet to loud, 5 volume levels ensure you never miss a door opening.

## Overview

The SANJIE Wireless Door Open Alarm Sensor Chime offers an impressive 800-foot wireless range, 55 ringtone options, and 5 adjustable volume levels up to 110dB. Designed for homes, offices, and retail spaces, it features easy plug-and-play installation with a pre-paired sensor and receiver, durable construction rated for 100,000 uses, and an LED indicator for clear alerts. Ideal for security and customer notifications, this sensor ensures you stay informed the moment a door opens.

## Description

Upgraded wireless door sensor with 800ft range, 55 ringtones, and 5 volume levels. Reliable security alerts when doors open, ideal for homes, offices, and businesses.

Review: ⭐️⭐️⭐️⭐️⭐️ Reliable and Easy to Use – Great Range and Features! - I purchased the SANJIE Wireless Door Open Alarm Sensor Chime for my conservatory to let me know when a door is opened, and it works perfectly. The setup was quick and straightforward – no complicated wiring, just pair the sensor and chime, and you’re ready to go. The 800FT operating range is impressive; it easily covers large spaces without losing signal. The 55 chime options are a nice touch, allowing you to choose a tone that suits your environment. The volume control is handy too, so you can adjust it for quieter or busier settings. The sensor is very responsive – it triggers instantly when the door opens, which is great for security and customer alerts. Overall, it’s a reliable, affordable solution for monitoring doors. Highly recommended for shops, offices, or even home use!
Review: It works well and value for money - The item is good quality and works well. Easy to use and the noise is good

## Features

- 【Newly upgraded function】: this upgraded door sensor alarm are more durable and stable, each door sensor can be used up to 100,000 times, the door alarm sensor have ON/OFF switch, you can freely control the use time, the coverage distance reaches 800ft/240M, which can satisfy most of the family's needs.
- 【Door chimes when door opens】:This wireless door alarm sensor can be a good reminder for you if you have toddler who try to sneak out of their bed room or help alert you the elderly with dementia who is trying to get out of the house.comes with a 90-day free return and a 365-day exchange service
- 【Wireless door alarm for business】: This door alarm can be used as a doorbell chime for your retail shop for your commercial to remind you when customers walks into your store, you will never miss any customers(visitors)
- 【Easy to Install】The door alarm and receiver are paired before shippment,Just plug the receiver into standard outlet, tear the double-side adhesive tape of the door sensor and stick them to any door or window,make sure the gap between the door sensor and magnet less than 0.6inch.
- 【55 Ringtones with Mute to 110dB】: The door alarms for business/home has 55 chimes with 5 adjustable volumes. With LED indicators and memory function: it will keep the previous set tune after re-plugging.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CR3QMGXK |
| Batteries | 1 C batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Best Sellers Rank | 1,838 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Door Bells Chimes |
| Control method | Touch |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,188) |
| Date First Available | 28 Dec. 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Guaranteed software updates until | unknown |
| Included Components | 1*Receiver(UK Plug-in), 1*Sensor (battery included), Screws, Adhesive tape, Product manual, |
| Item Weight | 140 g |
| Item model number | 1Sensor+1Receiver |
| Manufacturer | Sanjie |
| Material | Plastic |
| Maximum range | 800 Feet |
| Mounting type | Door Mount |
| Noise level | 120 Decibels |
| Number of Items | 1 |
| Number of batteries | 1 C batteries required. (included) |
| Product Dimensions | 9 x 6.5 x 2.5 cm; 140 g |
| Sensor technology | Contact Sensor |
| Shape | Rectangular |
| Size | 1 Sensor+1 Receiver (UK) |
| Style | 1Sensor+1Receiver |
| Voltage | 3 Volts |

## Product Details

- **Battery description:** Lithium-Ion
- **Brand:** SanJie
- **Colour:** White
- **Compatible devices:** Home Security System
- **Power source:** Battery Powered

## Images

![SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug-in Receiver 1 Sensor - Image 1](https://m.media-amazon.com/images/I/61+fwDbp+RL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How do i change the sound?**
A: Arrow buttons to select your favorite sound, then press and hold the middle SET button for 6-8 seconds, near door magnet, after the didi sound will be paired with the door magnet successfully.Repeat the above steps for different door sensor.

**Q: Can you set different chimes for different sensors?**
A: Yes, you can set different chimes for each sensor to know which door is open.

**Q: Can it be used on an metal doors？**
A: It is recommended not to use it directly on metal doors, because metal may affect the signal emission of the door magnet, and any door/window of other materials can be perfectly used

**Q: What is the distance of use?**
A: The distance of use is at 600ft (182m) in open spaces and 300ft (91m) in indoor places. As the time of use increases, the power drop will also reduce the distance of use.（Walls and other obstructions may also affect the signal transmission distance.）

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Reliable and Easy to Use – Great Range and Features!
*by P***G on 2 January 2026*

I purchased the SANJIE Wireless Door Open Alarm Sensor Chime for my conservatory to let me know when a door is opened, and it works perfectly. The setup was quick and straightforward – no complicated wiring, just pair the sensor and chime, and you’re ready to go. The 800FT operating range is impressive; it easily covers large spaces without losing signal. The 55 chime options are a nice touch, allowing you to choose a tone that suits your environment. The volume control is handy too, so you can adjust it for quieter or busier settings. The sensor is very responsive – it triggers instantly when the door opens, which is great for security and customer alerts. Overall, it’s a reliable, affordable solution for monitoring doors. Highly recommended for shops, offices, or even home use!

### ⭐⭐⭐⭐⭐ It works well and value for money
*by A***S on 22 December 2025*

The item is good quality and works well. Easy to use and the noise is good

### ⭐⭐⭐⭐ Think ahead where you want to install before buying.
*by S***L on 11 May 2025*

I bought two of these. Easy to fit and programme. The chime is loud and clear. It is very handy that you can switch the mechanism on and off on the sensor fitted onto the door. Only four stars because the door sensor is unreliable; it seems that they have to be fitted so that the two pieces almost touch, and that is not possible with all doors.

## Frequently Bought Together

- SANJIE Wireless Door Open Alarm Sensor Chime, 800FT Operating Range 55 Ringtones 5 Volume Level with LED Indicator,Door Alarm for Home Store Office Security When Opens,1 UK Plug in Receiver 1 Sensor
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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-05*