---
product_id: 633705978
title: "Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack)"
brand: "onvis"
price: "€ 98.92"
currency: EUR
in_stock: true
reviews_count: 5
category: "Onvis"
url: https://www.desertcart.at/products/633705978-onvis-thread-enabled-homekit-door-window-contact-sensor-wireless-mini
store_origin: AT
region: Austria
---

# Thread-enabled instant alerts 1-year battery life 100% privacy, no cloud tracking Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack)

**Brand:** onvis
**Price:** € 98.92
**Availability:** ✅ In Stock

## Summary

> 🔒 Stay connected, secure, and ahead with Onvis Thread-enabled sensors!

## Quick Answers

- **What is this?** Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) by onvis
- **How much does it cost?** € 98.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/633705978-onvis-thread-enabled-homekit-door-window-contact-sensor-wireless-mini)

## Best For

- onvis enthusiasts

## Why This Product

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

## Key Features

- • **Privacy-First Design:** Keep your data safe with zero cloud storage, no registration, and no tracking.
- • **Smart Home Automation:** Trigger HomeKit accessories automatically—like turning on lights when doors open.
- • **Year-Long Battery Life:** Powered by a single CR2450 battery, enjoy up to 12 months of uninterrupted monitoring.
- • **Seamless Thread Connectivity:** Experience ultra-fast, reliable alerts with Thread support—no hub needed.
- • **Effortless Installation & Monitoring:** Compact wireless sensors with adhesive backing and 30-day event history on your app.

## Overview

The Onvis Thread-Enabled HomeKit Door Window Contact Sensor is a compact, wireless security device designed for seamless integration with Apple HomeKit. Featuring Thread technology for instant alerts without a hub, it offers a year-long battery life powered by a CR2450 cell, and prioritizes user privacy with no cloud storage or tracking. Ideal for smart home automation, it enables real-time notifications and control of other HomeKit accessories, all managed via the Onvis app or Apple devices.

## Description

Buy Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: I’ve had multiple sets of sensors from Onvis and they work perfectly. Installation is easy and connectivity is smooth. The one and only time I had a connection issue with one of them, I contacted customer service and they were very helpful and even offered to replace for a new one. 100% recommend.
Review: Super responsive and work great, just deducted a star as it's weird that they don't have the ability to show as tiles in homekit. Either way they're perfect for what I needed.

## Features

- 【WHAT’S NEW】The Onvis contact sensor now is upgraded to support Thread - This allow you get instant alerts when windows or doors open in your home.It can control other HomeKit-accessories when you are away home which requires HomePod mini and Apple TV
- 【Onvis Door Sensor, Keep Your Home And Family Safe】 Onvis door sensor will send you notifications when there's a ON/OFF state change, reminding you whether the door or window is open or closed, 24/7 door sensor will monitor home, office, garage, warehouse, and more.
- 【Window & Door Sensor For Home Security System】Onvis Thread-enabled door sensor works exclusively with Apple HomeKit. Creating home automations with other HomeKit enabled accessories. For example, with the front door opened, the hallway lights can be turn on automatically.
- 【Low Energy Consumption And Long Standby Time】 The door sensor uses bluetooth low energy and powered by CR2450 cell battery, offering low power consumption and 1 year standby time. Excellent quality and seamless installation.
- 【Record and Export】 Shows detection records over the recent 30 days and can be checked on ONVIS Home App or Apple devices.
- 【Reliable and Privacy】100% Privacy: No Onvis cloud, no registration, no tracking.
- 【IMPORTANT Updates 】Please upgrade your Onvis APP to v4.0.2. This version App supports CT3 firmware upgrade from v1.3.1 & v1.4.4 to v1.5.3, which greatly improves CT3 low-power performance, and enables on/off records.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXP613WN |
| ASIN  | B0BXP613WN |
| Audible Noise | 75 Decibels |
| Batteries  | 1 CR2 batteries required. (included) |
| Battery Description | Alkaline |
| Best Sellers Rank | #10,878 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Home Security Door & Window Sensors |
| Brand | Onvis |
| Built-In Media | 2*Onvis Smart Door & Window Sensor1* adhesive backing 1*user manual 1*Reset pin |
| Color | white |
| Compatible Devices | HomeKit-enabled Apple devices |
| Control Method | App |
| Country of Origin | China |
| Country of origin  | China |
| Customer Reviews | 4.0 4.0 out of 5 stars (59) |
| Customer reviews | 4.0 4.0 out of 5 stars (59) |
| Date First Available  | 14 May 2024 |
| Item model number  | CT3-N |
| Manufacturer | Onvis |
| Manufacturer  | Onvis |
| Manufacturer Warranty Description | 1Year |
| Mfr Part Number | CT3--2 |
| Model Number | CT3-N |
| Mounting Type | Door Mount, Window Mount |
| Number of Batteries | 1 CR2 batteries required. (included) |
| Power Source | Battery Powered |
| Product Dimensions  | 3 x 4.6 x 1.5 cm; 68 g |
| Sensor Technology | Contact Sensor |
| Size | 2 |
| Voltage | 3 Volts |

## Product Details

- **Battery description:** Alkaline
- **Brand:** Onvis
- **Colour:** white
- **Compatible devices:** HomeKit-enabled Apple devices
- **Power source:** Battery Powered

## Images

![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) - Image 1](https://m.media-amazon.com/images/I/61GJ+Fjg28L.jpg)
![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) - Image 2](https://m.media-amazon.com/images/I/61BlbRRKfdL.jpg)
![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) - Image 3](https://m.media-amazon.com/images/I/71KOKGD-emL.jpg)
![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) - Image 4](https://m.media-amazon.com/images/I/61U-iPZDnoL.jpg)
![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, No Hub Required(2Pack) - Image 5](https://m.media-amazon.com/images/I/61M9a7ob8UL.jpg)

## Questions & Answers

**Q: Can it worked with Apple device ?**
A: Yes,it's a homekit sensor

**Q: Can I control it by voice?**
A: Of course you can! "Hey Siri, turn the kitchen light to 30%." It's very easy to use!

**Q: Is the battery rechargeable ?**
A: No,you can replace the battery

**Q: Can I remotely control it with my mobile phone?**
A: Yes,but requre a hub ( Homepod mini or Apple TV)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***A on 12 September 2024*

I’ve had multiple sets of sensors from Onvis and they work perfectly. Installation is easy and connectivity is smooth. The one and only time I had a connection issue with one of them, I contacted customer service and they were very helpful and even offered to replace for a new one. 100% recommend.

### ⭐⭐⭐⭐ Review
*by T***M on 6 December 2025*

Super responsive and work great, just deducted a star as it's weird that they don't have the ability to show as tiles in homekit. Either way they're perfect for what I needed.

### ⭐⭐⭐⭐⭐ Review
*by D***. on 13 April 2026*

Homekit solution to the mailbox on the curb, "You've Got Mail" automation. This one has the range to make it easy. Attached to the door of the mailbox (even inside my metal mailbox) it has enough range to reach my house. Two thumbs WAY up.

## Frequently Bought Together

- Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, iOS Only (2Pack)
- Onvis Smart Button, 5-Keys Smart Switch, Scene Controller, Compatible with Apple HomeKit, Automatically Trigger Accessories & Scenes-Thread (iOS 17.4 or Later is Required)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-05-01*