Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
Open/Closed Status Monitoring: Stay informed and secure with real-time notifications on your smartphone whenever the sensor detects activity. You'll never miss a potential security threat and keep everything under control, whether you're at home or away.
Native Matter Support*: Entering the Matter era, users no longer need to worry about different ecological platforms and technical protocols, and only need a Matter-compatible app and Matter Thread Border Router. This means that connections across ecosystems and platforms become simpler and easier.
Local Home Automation: You can integrate the Door and Window Sensor P2 with your smart home ecosystem to enable advanced automations like adjusting thermostat settings or activating security cameras when a door or window is opened. Moreover, the automations are executed locally without cloud, which can protect the users' privacy and will keep working even if there is no internet connection.
[Window & Door Alarm Sensor for Home Security] SwitchBot Contact Sensor can detect the opening/closing of doors and windows, guarding security of the elderly, children, and pets. With the built-in light sensor, it will automatically trigger the Switchbot Bot to turn on the light when someone moves when the environment goes dark. The magnets need to be aligned with the bottom of the body, and the distance between the two components needs to be less than 1.2 inches (30mm).
[Easy to Install & Place It Anywhere] Thanks to the small and wireless design with long battery life, you can install Contact Sensor tool-free and get it set up in seconds. Place it on a medicine box to track whether the elderly are taking their medication, or place it on your pet's cage to know if your kitten has slipped away.
[Detects People Leaving or Entering the Home] With the built-in motion sensor, Contact Sensor will know whether you are leaving or coming home, making it possible to trigger the different actions you set in the "Scene" in the SwitchBot app. When it detects you leaving home, the appliances will automatically turn off, and when it detects you coming home, the appliances will automatically turn on. (SwitchBot Hub Mini required)
Curious about how we select the top products for you? Explore How It Works
How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
● This item requires connection to an Aqara Hub to function
● Multi-Ecosystem Support: After binding it to an Aqara hub, the sensor can be exposed to third-party platforms, such as Apple Home, Amazon Alexa, Google Home, and even Matter. Moreover, it can be natively integrated with Samsung SmartThings and Yandex Smart Home.
● A Smart Sensor with Maximum Versatility: For an added convenience and peace of mind, you will be able to install this tiny sensor not only on the doors and windows, but also into the drawers, mailboxes, and even AC units to achieve.
【Volume Adjustment & Vibration Mode】The receiver allows you to adjust the volume across 5 levels.The lowest activating vibration mod.At the highest level (level 5), the 44mm speaker emits a loud sound up to 113dB. It also features multiple sound options: 1 alarm, 1 dog bark, 3 doorbells, 4 welcome tones, and 8 musical melodies.
【Effortless setup】Pairing the sensor and receiver takes just 10 seconds—simply follow the instructions for easy process. Install the motion sensor(detector) where you need to monitor movement, and place the receiver(chime) within earshot. When a warm-bodied creature passes through the sensor's detection range, advanced infrared technology triggers the sensor's blue indicator light, and the receiver triggers a sound and light alert.
【Application】Home Use: Get real-time alerts when someone approaches your house, monitor patient care activities, or keep an eye on your pets; Business Use: Receive instant notifications when customers enter your store, or monitor key office areas; Other Uses: Protect valuable spaces or items by getting timely alerts if someone gets close.
【Versatile Application】This alarm offers flexible security for various entry points. Easily installed with strong adhesive backing, it’s ideal for homes, apartments, offices, hotel rooms, garages, and mobile homes—giving an immediate warning against unauthorized entry.
【Loud 90dB Instant Alarm】Once armed, any unauthorized opening of the door or window triggers a piercing 90dB alarm. This loud sound serves to deter burglars, alert occupants, and prevent children or pets from wandering outside unnoticed, ensuring safety whether you’re at home or away.
【Easy Installation】The magnetic sensor triggers when the door or window opens. Features simple peel-and-stick setup with no tools needed. Operation: When the gap between the sensor and magnet exceeds 0.59 inches (15mm), the alarm sounds at 90+ dB to deter intruders or alert you of a child’s movement. 3 Simple Steps: 1. Insert 2 AAA batteries (not included). 2. Peel off the adhesive backing and mount the alarm on the desired door/window. 3. Flip the ON/OFF switch to activate.
Wide Range of Action: This door open chime entry alert has 500ft/150m operating range in open area, enough for to cover every window and door in your house or store. Suitable for small and medium-sized homes, as well as shops and apartments.
How This Door Open Sensor Alarm Works: Door sensors are devices that let you know when someone has opened a door. Door sensor will automatically trigger the Receiver when the magnetic stripe is separated 1cm, then Receiver will sound to alert you. It works great for home security, business/home entrance and so on. If our children and the elderly open doors and windows, we can also know in time.
Door Chime with Long Battery Life: 1 Receiver with 1 door sensor. This door sensor chime designed with ultra-low power consumption for longer battery life. Tested by the professional equipment, this door sensor chime can be used up to 80,000 times, which fully meets the needs of household or commercial use. You need a durable door chime, Not a one month door chime.
SMART DESIGN - The alarm and magnetic stripe are separated more than 0.39inch(10mm), it keeps going off until you close door(make them connection) or turn it off(switch to the button "OFF").
EASY INSTALLATION - Wipe the flat surface, peel off sticker, mount the alarm on door and magnetic stripe on door frame. Done!!
Big LOUD ALARM – door window sensors loud enough to detects entry, prevent kids and babies going out the house, protecting your home office, garage, dorm room, or apartment whether you are in or out. You can definitely hear it from another room to alert you. No worry the young children could mess with it, just have it up high where they can't reach it. Work on sliding doors, windows, drawer, fridge
Wide Range of Action: This door open chime entry alert has 500ft/150m operating range in open area, enough for to cover every window and door in your house or store. Suitable for small and medium-sized homes, as well as shops and apartments.
How This Door Open Sensor Alarm Works: Door sensors are devices that let you know when someone has opened a door. When door or window is opened, the Sensors will be triggered to send signal to Receiver, then Receiver will sound to alert you. It can be used for home security, business/home entrance and so on.
Door Chime with Long Battery Life: 1 Receiver with 1 door sensor. This door sensor chime designed with ultra-low power consumption for longer battery life. Tested by the professional equipment, this door sensor chime can be used up to 80,000 times, which fully meets the needs of household or commercial use. You need a durable door chime, Not a one month door chime.
Wireless Motion Sensor: The transmission range of the motion sensor alarm is up to 280m/918ft (the distance from the detector to the receiver) and detection range of the infrared sensor approximately 13-26ft to keep you informed and safe.
Power Supply: Receiver host using AA battery(not included) or micro USB power supply, infrared curtain using AAA battery(not included) or micro USB power supply,
Home Security Alarm: Independent alarm horn,maximum 113dB, can effectively scare the thieves and intruders away,
Volume Adjustable Door Alarm: This door alarm is used to alert you when a door or window is opened by 0-120DB alarm or ding-dong sound. It has 4 working modes, it prevents your children from sneaking out, it can be used as a doorbell for people with dementia patients and it is a perfect wireless home security alarm system for kids safety, burglary, home security, garage,and business security.
4 Working Modes:#1 Instant alarm(It will alarm loudly if the door is open, and it will stop as soon as your door is closed) #2 Entry alert mode (Rings“Ding dong” once as a welcome tone ) #3 Door closing reminder(Emits "bibi"sound every 10 seconds to remind you by repeated sound until the door is closed). #4 Instrude alarm mode (Alarm will last for 1 minute if your door is being open 1 minute).
2 Installation Ways: This door alarm comes with double-sided adhesive and screw bag, you just need to peel off the sticker and install it on the door and door frame,or use the screw to mount on the door,remember to keep them less than 0.6in apart and on the same plane, and it will work fine.
Discover top deals and categories on AmazonCheck Deals
Curious about how we select the top products for you? Explore How It Works
