---
product_id: 741576387
title: "Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, iOS Only (2Pack)"
brand: "onvis"
price: "₹ 3"
currency: INR
in_stock: false
url: https://www.desertcart.in/products/741576387-onvis-thread-enabled-homekit-door-window-contact-sensor-wireless-mini
store_origin: IN
region: India
---

# Thread-enabled ultra-fast alerts 1-year battery life Seamless HomeKit security integration Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, iOS Only (2Pack)

**Brand:** onvis
**Price:** ₹ 3
**Availability:** ❌ Out of Stock

## Summary

> 🔐 Secure your space, smartly and silently.

## 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, iOS Only (2Pack) by onvis
- **How much does it cost?** ₹ 3 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/741576387-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:** No cloud, no tracking, no registration—your home security data stays strictly between you and your devices.
- • **Year-Long Battery Life:** Powered by a single CR2450 battery, enjoy up to 12 months of uninterrupted monitoring without the hassle of frequent replacements.
- • **Comprehensive Activity Logs:** Review 30 days of door/window open-close history directly on your iOS device for full peace of mind and control.
- • **Instant Thread Connectivity:** Experience lightning-fast, reliable alerts with the latest Thread technology—stay ahead of any door or window activity.
- • **Effortless HomeKit Automation:** Syncs flawlessly with Apple HomeKit to trigger smart automations like turning on lights the moment your door opens.

## Overview

The Onvis Thread-Enabled HomeKit Door Window Contact Sensor is a compact, wireless device designed exclusively for iOS users. It leverages Thread technology for instant alerts and seamless integration with Apple HomeKit, enabling smart home automations. With a low-energy CR2450 battery, it offers up to one year of standby time. The sensor ensures privacy with no cloud dependency and provides 30-day activity logs accessible via the Onvis app or Apple devices.

## Description

door and window sensor

## 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 | Voice |
| Noise level | 75 dB |
| Mounting type | Door Mount |
| Sensor technology | Contact Sensor |
| Manufacturer | Onvis |
| Part Number | CT3--2 |
| Product Dimensions | 3 x 4.6 x 1.5 cm; 68 g |
| Batteries | 1 CR2 batteries required. (included) |
| Item model number | CT3-N |
| Size | 2 |
| Style | modern |
| Included Components | Pads |
| Batteries included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
| Item Weight | 68 g |

## Product Details

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

## Images

![Onvis Thread-Enabled HomeKit Door Window Contact Sensor,Wireless Mini Low-Energy Contact Sensor for Alarm System and Smart Home Automation, iOS Only (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, iOS Only (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, iOS Only (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, iOS Only (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, iOS Only (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)

## 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 India*
*Store origin: IN*
*Last updated: 2026-05-20*