---
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: "€ 77.91"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/633705978-onvis-thread-enabled-homekit-door-window-contact-sensor-wireless-mini
store_origin: IT
region: Italy
---

# 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:** € 77.91
**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?** € 77.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/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

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)

## 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 |
|---------------|-------|
| Number of batteries | 1 CR2 batteries required. (included) |
| Voltage | 3 Volts |
| Control method | App |
| Noise level | 75 Decibels |
| Mounting type | Door Mount, Window Mount |
| Sensor technology | Contact Sensor |
| Size | 2 |
| Manufacturer | Onvis |
| Part number | CT3--2 |
| Item Weight | 68 g |
| Product Dimensions | 3 x 4.6 x 1.5 cm; 68 g |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | CT3-N |
| Color | white |
| Included components | 2*Onvis Smart Door & Window Sensor1* adhesive backing 1*user manual 1*Reset pin |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
| tech_spec_battery_description_toys | Alkaline |

## Product Details

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

## 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)

## 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)

## 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 Italy*
*Store origin: IT*
*Last updated: 2026-02-21*