---
product_id: 81774371
title: "AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range"
brand: "yale"
price: "HK$568"
currency: HKD
in_stock: true
reviews_count: 13
category: "Yale"
url: https://www.desertcart.hk/products/81774371-ac-dc-sync-alarm-door-window-contact-sync-smart-home
store_origin: HK
region: Hong Kong
---

# 200m wireless range Battery-powered, no wiring Instant alarm notifications AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range

**Brand:** yale
**Price:** HK$568
**Availability:** ✅ In Stock

## Summary

> 🔐 Stay ahead of threats with Yale’s smart, wire-free security — because peace of mind shouldn’t wait.

## Quick Answers

- **What is this?** AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range by yale
- **How much does it cost?** HK$568 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/81774371-ac-dc-sync-alarm-door-window-contact-sync-smart-home)

## Best For

- yale enthusiasts

## Why This Product

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

## Key Features

- • **Real-Time Intrusion Alerts:** Get instant notifications on your phone the moment a door or window opens.
- • **Seamless 200m Wireless Range:** Keep your entire property connected without messy cables or dead zones.
- • **Effortless Battery-Powered Setup:** Install anywhere with included lithium batteries—no electrician needed.
- • **Expandable Smart Security Ecosystem:** Add up to 40 accessories to customize your Yale Sync Alarm system.
- • **Tamper-Proof Design for Ultimate Peace of Mind:** Protect your main entry points with reliable, tamper-resistant sensors.

## Overview

The Yale AC-DC Sync Alarm Door/Window Contact is a wireless, battery-powered sensor designed to secure doors and windows by triggering your Yale Sync Smart Home Alarm. With a robust 200m range, tamper-proof design, and instant app notifications, it integrates seamlessly into an expandable system supporting up to 40 accessories. Easy to install with no wiring required, it offers reliable, real-time protection trusted since 1840.

## Description

From the brand Trusted Every Day We have been protecting homes since 1840. Our brand stands for trust, knowledge and tradition; make durable quality products. Discover the Yale Smart Security ecosystem. Our new intelligent alarm system, intelligent video doorbell and intelligent security cameras - for indoor and outdoor use - are all seamlessly compatible with the entire Yale ecosystem, which includes the Linu Smart Lock, our smart storage range, and the smart gate and garage opener. Ecosystem Discover smart door locks Discover safes Our values Improve life - We strive to make everyday life easier. Put yourself first - to lead, we need to listen. We are for everyone to be thoughtfully innovative - we drive how we can make life more comfortable without compromising safety. Seamless experiences - every time you come into contact with us, gain confidence - we were there for your grandparents and will be there for you and your children Our values Improve life - We strive to make everyday life easier. Put yourself first - to lead, we need to listen. We are for everyone to be thoughtfully innovative - we drive how we can make life more comfortable without compromising safety. Seamless experiences - every time you come into contact with us, gain confidence - we were there for your grandparents and will be there for you and your children Discover surveillance systems Discover mechanical View our Legal and Compliance information.

Review: Dependable Home Security System. Smart, Reliable, with Effortlessly Integration. - I’ve had my Yale security system for almost 10 years now, and while the door/window contacts aren’t the prettiest things in the world ‘they’re a bit bulky and don’t fit perfectly on every frame’ they’ve proven to be absolutely rock-solid in reliability. The system itself is incredibly robust. The contacts respond instantaneously, and the alarm has never let me down. The PIR sensors can be a little over-sensitive at times, but that’s to be expected without more advanced and often more expensive presence detection. One of the best aspects is that the whole setup is completely wireless. It makes installation and repositioning around the house quick and hassle-free. With no cables Another thing I really appreciate is how seamlessly the Yale ecosystem integrates with Alexa and my wider smart home automations. For example, when I close the window at night, Alexa automatically closes the blinds too. Or when the humidity gets too high in the kitchen, it opens the blinds to remind me to air out the room. simple, clever, and really useful. Even after all these years, the system still feels modern thanks to that flexibility. I’ve had plenty of chances to switch brands, but I still feel safest sticking with Yale. Not perfect in looks, but it delivers where it matters, reliability, responsiveness, and peace of mind.
Review: Great sensors - easy to install and no false triggers! - Love these sensors. They are so easy to install and don't false trigger (I have a sensor pointing at my front door and posted letters and newspapers through the door and the alarm did not activate). Used one sensor in my log cabin which is 140 meters away from the base unit and it works perfectly. So pleased that I can alarm my house, garage and log cabin from one alarm. I switch to part arm when home (so the alarm to the log cabin and garage is still activated). These sensors are amazing! Highly recommended!

## Features

- SYNC ALARM ACCESSORY: The Door/Window Contact is easy to pair with your Yale Sync Smart Home Alarm through the Yale Alarm App.
- TAMPER PROOF SECURITY: Secures any door or window, the main access points to your home, triggering your alarm & notifying you in real-time when a door or window is opened.
- INSTANT NOTIFICATIONS: Get notifications to your Yale Alarm app if a contact is disturbed in your home while the alarm is armed.
- EASY TO SET UP & INSTALL: Link to your Yale Sync Smart Home Alarm straight out of the box. Completely wire-free, with no need for cables running through your home. You can attach to any surface, either via a screw or sticky-back for greater convenience.
- EXPANDABLE SYSTEM: Extend & customise your Yale Sync Alarm, by adding up to 40 accessories.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07961NG5F |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Lithium |
| Best Sellers Rank | 5,099 in DIY & Tools ( See Top 100 in DIY & Tools ) 11 in Home Security Door & Window Sensors |
| Colour | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,312) |
| Date First Available | 21 Jan. 2018 |
| 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. |
| Included Components | 1x Door/Window Contact, 1x Fixing Pack, Batteries included |
| Item Package Quantity | 1 |
| Item Weight | 70 g |
| Item model number | AC-DC |
| Manufacturer | Yale |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | AC-DC |
| Pattern | Single |
| Power Source | Battery |
| Product Dimensions | 1.5 x 4 x 7.5 cm; 70 g |
| Size | Door/window contact |
| Style | YALE DOOR/WINDOW CONTACT |

## Images

![AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range - Image 1](https://m.media-amazon.com/images/I/41Dvu6AYmES.jpg)

## Questions & Answers

**Q: Is there a setting that allows you to zap intruders in the groin with some kind of laser?**
A: There is a secret code for that yes. You have to set it to disruptercon 4 and activate the discombobulator mode. This will then allow the door contact to laser intruders in the groin. Disruptercon 3 turns on head mode (makes a mess)

Hope this helps!👍🏻

**Q: What happens if there is Power loss or internet loss?**
A: There is an internal battery that will allow the alarm to operate during a power cut. If there is Internet loss you can still operate the alarm via the keypad

**Q: Are these sensors waterproof?**
A: Although they are not waterproof, I have had one fitted for nearly a year outside covering our drive to the side of the house. I have fitted with a plastic covering over the top to prevent rain from hitting the unit, and it has been absolutely fine so far.

**Q: Can the keypad be placed anywhere? or does it need to be powered by mains?**
A: It's battery powered and can be placed anywhere. The batteries are said to last up to 2 years and it is the cr2302 type.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Dependable Home Security System. Smart, Reliable, with Effortlessly Integration.
*by S***O on 5 November 2025*

I’ve had my Yale security system for almost 10 years now, and while the door/window contacts aren’t the prettiest things in the world ‘they’re a bit bulky and don’t fit perfectly on every frame’ they’ve proven to be absolutely rock-solid in reliability. The system itself is incredibly robust. The contacts respond instantaneously, and the alarm has never let me down. The PIR sensors can be a little over-sensitive at times, but that’s to be expected without more advanced and often more expensive presence detection. One of the best aspects is that the whole setup is completely wireless. It makes installation and repositioning around the house quick and hassle-free. With no cables Another thing I really appreciate is how seamlessly the Yale ecosystem integrates with Alexa and my wider smart home automations. For example, when I close the window at night, Alexa automatically closes the blinds too. Or when the humidity gets too high in the kitchen, it opens the blinds to remind me to air out the room. simple, clever, and really useful. Even after all these years, the system still feels modern thanks to that flexibility. I’ve had plenty of chances to switch brands, but I still feel safest sticking with Yale. Not perfect in looks, but it delivers where it matters, reliability, responsiveness, and peace of mind.

### ⭐⭐⭐⭐⭐ Great sensors - easy to install and no false triggers!
*by A***W on 15 February 2024*

Love these sensors. They are so easy to install and don't false trigger (I have a sensor pointing at my front door and posted letters and newspapers through the door and the alarm did not activate). Used one sensor in my log cabin which is 140 meters away from the base unit and it works perfectly. So pleased that I can alarm my house, garage and log cabin from one alarm. I switch to part arm when home (so the alarm to the log cabin and garage is still activated). These sensors are amazing! Highly recommended!

### ⭐⭐⭐⭐ Fine no problems
*by M***. on 9 November 2025*

Fine no problems

## Frequently Bought Together

- Yale AC-DC Sync Alarm Door/Window Contact - Sync Smart Home Alarm - 200m range
- Yale IA-320 Sync Smart Home Alarm 6 piece kit. Includes Sync Alarm Hub, External Siren, 1x Door/Window Contacts, 2x PIR Motion Detector, Keypad. Works with Alexa, Google Assistant & Philips Hue
- Yale AC-KF Sync Keyfob - Sync Alarm Accessory for Disarming Alarm, Black, 200m range

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-31*