---
product_id: 147227440
title: "Koostone Wireless Magnetic Door Entry Sensor Alarm Chime, Door Open Alert for Shop, Garage, Window Security for Kids, Elders Safety, Anti-theft, 2 Secure Contact Sensors, 1 Doorbell Plugin Receiver"
brand: "trarover"
price: "$67.50"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/147227440-koostone-wireless-magnetic-door-entry-sensor-alarm-chime-door-open
store_origin: US
region: United States of America
---

# 400ft wireless range 1 year battery life 55 customizable ringtones Koostone Wireless Magnetic Door Entry Sensor Alarm Chime, Door Open Alert for Shop, Garage, Window Security for Kids, Elders Safety, Anti-theft, 2 Secure Contact Sensors, 1 Doorbell Plugin Receiver

**Brand:** trarover
**Price:** $67.50
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Koostone Wireless Magnetic Door Entry Sensor Alarm Chime, Door Open Alert for Shop, Garage, Window Security for Kids, Elders Safety, Anti-theft, 2 Secure Contact Sensors, 1 Doorbell Plugin Receiver by trarover
- **How much does it cost?** $67.50 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/147227440-koostone-wireless-magnetic-door-entry-sensor-alarm-chime-door-open)

## Best For

- trarover enthusiasts

## Why This Product

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

## Key Features

- • **Stay Instantly Informed:** Dual sensors with unique chimes let you know exactly which door or window opens—no guessing, no delays.
- • **Peace of Mind Guaranteed:** Backed by a 2-year warranty and responsive 24-hour after-sales support for uninterrupted security.
- • **Seamless Wireless Coverage:** Robust 400ft wireless range penetrates walls, ensuring reliable alerts throughout your home or office.
- • **Effortless Setup & Expansion:** Magnetic sensors install in seconds with less than 0.3-inch gap; add more sensors or receivers to cover multiple entry points.
- • **Customize Your Alert Experience:** Choose from 55 distinct ringtones and 5 volume levels up to 120dB to fit your environment and mood.

## Overview

The Koostone Wireless Magnetic Door Entry Sensor Alarm Chime is a versatile security solution featuring two contact sensors and one plug-in receiver. It offers 55 ringtone options, adjustable volume up to 120dB, and a wireless range of 400 feet that works through walls. Easy to install with magnetic mounting requiring less than 0.3 inches gap, it supports expandable setups for multiple doors or windows. Powered by long-lasting alkaline batteries, it comes with a 2-year warranty and dedicated customer support, making it ideal for home, office, or retail security and safety monitoring.

## Description

Koostone Wireless Magnetic Door Entry Sensor Alarm Chime, Door Open Alert for Shop, Garage, Window Security for Kids, Elders Safety, Anti-theft, 2 Secure Contact Sensors, 1 Doorbell Plugin Receiver

## Features

- 【How it works】 - Koostone Wireless Door Chime comes with 2 door/window sensors and 1 receiver, and each sensor can set a separate sound with the receiver, that means you can know the front door or the back door or the mailbox opens without needing to go to see it. The sensors will detect the door/window, and will be triggered to send out a signal when the door/window opening. Receiver will receive the signal and alerts. It can be used as door chimes when door opens for business.
- 【55 Ringtones, 5 Levels Volume Control, 400ft Wireless Range】 - 55 Unique ringtones/chimes with 5 Level Volume for a 0-120dB volume range, you can mute the door alarm or choose a favorite level volume. The receiver cover a distance of 400ft Wireless Range, wireless signal can also go through walls.
- 【Fixing Distance Less Than 0.3 inches & Expandable】 - NOTE: The fixing distance of sensor and magnet should be LESS than 0.3 inches/0.8 cm, the closer the better, try to reset them closer if the receiver doesn't work, this is very important. Each door sensor or receiver can be expandable, add more receiver or sensor to setup different chimes in multiple areas for front door, back door, sliding door etc.
- 【Easy Installation】 - Step 1: Choose a favorite ringtone and pairs the sensor and receiver. Step 2: Adhere the magnetic sensor well on your door/window and plug the reveiver into a socket. All ready… PS: the same way to set second sensor ringtone, and you can choose a different chime.
- 【QUALITY GUARANTEE】 - Koostone wireless door chimes provides a 2-YEAR WARRANTY and AFTER-SALES SERVICE within 24 hours. Complete satisfaction guaranteed!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Voltage | 12 Volts |
| Control method | Touch |
| Noise level | 120 dB |
| Mounting type | Door Mount |
| Maximum range | 400 Feet |
| Sensor technology | Contact Sensor |
| UPC | 824381926878 |
| Manufacturer | Trarover |
| Part Number | N6 |
| Product Dimensions | 8.3 x 8 x 6 cm; 180 g |
| Batteries | 2 CR2 batteries required. |
| Item model number | N6 |
| Size | Large |
| Item Package Quantity | 1 |
| Plug format | H - V plugs with ground plug. |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Average Battery Life | 1 	years |
| Battery Capacity | 50 Milliamp Hours |
| Item Weight | 180 g |

## Product Details

- **Colour:** White
- **Brand:** Trarover
- **Power source:** Battery Powered
- **Battery description:** battery_type_12v
- **Number of batteries:** 2 CR2 batteries required.

## Images

![Koostone Wireless Magnetic Door Entry Sensor Alarm Chime, Door Open Alert for Shop, Garage, Window Security for Kids, Elders Safety, Anti-theft, 2 Secure Contact Sensors, 1 Doorbell Plugin Receiver - Image 1](https://m.media-amazon.com/images/I/5135M3mAsiL.jpg)

## Questions & Answers

**Q: Can it be programmed to give a different sound  on door open and also on door closing ? Answer to Sep 1st question implies that it does.**
A: Thank you very much for your attention to trarover sensor alarm chime,  the answer is NO.  The receiver will ring when the sensors are separated, that means it won't ring when the door is closed, hope that helps.

**Q: Hi I need a chime alert that will constantly ring until the door is shut. Will this do it?**
A: Thank you very much for your attention to this chime alert, no, this chime won't constantly ring when the door keeps open,  in principle, the receiver will ring once when the two secure contact sensors separate, that means it will ring one time ( it will last a few seconds, depends on the ring you chose) when you open the door, it will ring again when the door swings in the opposite direction which you open, hope that helps.

**Q: Does this have vibrate mode to alert deaf people**
A: Thank you very much for your attention to this Koostone Alarm Chime, no, it is the plug in type alarm chime, not battery type, so it does not have vibrate mode, but it has flash light function to alert deaf people, hope that helps.

**Q: Is it possible to get 2 receiver**
A: Thank you very much for your attention to Trarover sensor alarm chime, the receiver is not sold separately currently, sorry for that, you have to buy two packages if you need two receivers, hope that helps.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-17*