Know the Moment Your Door Opens — Instantly
Real-time alerts to your phone. No hub. No subscription.
You’re at work, on a trip, or out for dinner. Did you close the door? This slim WiFi sensor answers that question in real time. The moment a door or window opens, your phone gets an alert. No hub, no gateway, no monthly fees. Just WiFi and the free Smart Life app.
How It Works
Two pieces work together to monitor every door and window.
The sensor comes in two parts — a main body and a magnetic piece. Stick them on your door and door frame with the included adhesive tape (triangle marks must align). When the door opens, the gap exceeds 10mm and the sensor sends an alert to your phone. Close the door → alert stops. That’s it.
Instant Phone Alerts
No cameras. No alarms. No drilling — just peace of mind.
This is the renter-friendly alternative: peel off the backing, stick it on your front door or window, and know when it opens. Moving out? Peel it off and take it with you — zero deposit risk. Share alerts with family — everyone gets notified on their own phone via the Smart Life app.
Everything in One Sensor
Tiny device. Huge convenience.
📱 Instant Alerts
Phone notification the moment a door or window opens. Free Smart Life app for iOS & Android.
📡 No Hub Required
Connects directly to your home 2.4GHz WiFi. No extra hardware, no monthly fees.
🎙️ Voice Control
Works with Amazon Alexa and Google Assistant. Ask “is the door open?”
🔋 Battery Powered
Uses 2× AAA batteries (not included for shipping compliance). Easy to find and replace.
🛠️ Peel-and-Stick
No drilling, no wiring, no landlord approval needed. Deposit-safe for renters.
🚪 Multi-Use
Front door, windows, closets, cabinets — know whenever something opens.
Install in Minutes
Stick on, connect to WiFi, done. No tools required.
Just remove the adhesive backing, stick the main unit on your door frame and the magnet on the door edge (triangle marks facing each other). Open the Smart Life app, add the device over 2.4GHz WiFi, and you’re all set.
Perfect for Every Door and Window
One sensor, dozens of uses.
Front door — know when deliveries arrive or your roommate gets home. Windows — fresh-air peace of mind while you’re away. Closets & cabinets — keep curious hands out. Automations — door opens, light turns on (pair with a smart plug).
Technical Specifications
Model JY-01 (PB-69) — WiFi Door/Window Contact Sensor
| Model | JY-01 (PB-69) |
|---|---|
| Connectivity | WiFi 2.4 GHz (Tuya / Smart Life) |
| Power | 2× AAA batteries (3V DC) |
| Standby Current | 8 μA |
| Alarm Current | 15 mA |
| Trigger Gap | 10 mm (0.4 in) |
| Wireless Range | 25–35 m (open area) |
| Operating Temp | −10 to +40 °C |
| Weight | 35 g (0.077 lb) |
| Dimensions | 74 × 42 × 15 mm (2.9 × 1.7 × 0.6 in) |
| Certification | FCC (USA) |
Works with Alexa
Google Assistant
45-Day Returns
Renter Friendly
FCC Certified
What’s in the Box
1 × WiFi door/window sensor (main unit) · 1 × Magnetic piece · 2 × Adhesive tape sets · Quick start guide
Note: This sensor provides door status alerts only — it is not a motion detector and does not record video. Works with 2.4GHz WiFi networks only (not 5GHz).
Amy S. –
Got this to know when my packages arrive. Delivery person opens the outer door, I get a notification on my phone. Simple and effective. The battery is supposed to last a long time and range through walls is good. The app lets you share access so my roommate also gets notified. Great renter-friendly solution without drilling holes.
Derek L. –
Perfect peace of mind for a rental. I travel for work and wanted to know if my apartment door opened while I’m away. This sensor works flawlessly with Google Home too – I can ask Google if the door is closed. No drilling, no permanent installation. Moving out? Just peel it off. Already bought a second one for my bedroom window.
Kelly J. –
Works great for my front door. The app notification comes through instantly when the door opens. Setting it up was straightforward. Only reason for 4 stars is the adhesive could be stronger – I added a small strip of my own double-sided tape just to be safe. Otherwise it does exactly what it promises. Good value for the price.
Tom R. –
Exactly what I needed for my apartment. I live on the ground floor and wanted to know when my door opens without installing a camera. Setup was incredibly easy – stuck the sensor on the door frame and magnet on the door, connected to the Smart Life app in about 2 minutes. Now I get alerts on my phone whenever the door opens. No hub required and no monthly fees. Highly recommend for renters!
Nina P. –
Simple and effective. Stick it on the front door, connect to the app, done. Now I get an alert every time my door opens — perfect for knowing when packages arrive or when my roommate gets home. The battery indicator in the app is a nice touch. No false alarms so far.