Wifi Door Sensor Alarm: Smart Door Window Sensor With 90Db Real-Time, 4Pack Product Details Wireless Window Detector is designed to monitor the open or close status of any entrance; 90 decibel sound alarm and an alert notification will automatic send to you once the sensor triggered; Ideal for front door, window, baby room, garage and more; Door status and battery power can be check in app; No hub required; No extra cost; A must have security system accessories Main features: *90DB Sound Alarm *Real-time APP Notification *Alarm History on your app *Supports voice control. *Low Battery Notification *Disarm or arm *Timer disarm or arm as your need *The alarm time and volume can be adjusted *Share with your family Specification: App:Tuya smart or Smart life app Wireless Type:ONLY 2.4GHz Wireless Standard:IEEE 802.11b/g/n Sound Alarm:90dB Standby Current: 8uA Alarm Current: 70mA?120mA Battery: LR03-1.5V/AAA*2 (Alkaline battery, included) Battery Life: 6200 times trigger Working Temperature:0??40? (32? ?104? ) Size: (Main body):2.83 IN x 1.18 IN x 0.75 IN Size: (Small body):1.79 IN x 0.61 IN x 0.55 IN Material:ABS LOCAL ALARM FREE APP ALERTS: No hub required, connect the door open sensor to Tuya Smart/Smart life app via 2.4GHz Wifi. when door/window is opened or closed, the wifi door sensor will make a 90DB sound alarm and push instant App notification to your smartphone. You can check the alarm History on your app COMPATIBLE WITH ALEXA AND GOOGLE ASSISTANT: The door alarm contact sensor is compatible with Alexa and Google Assistant, supports voice control. You can detect the status of your doors, windows, cabinets, drawers or anywhere by voice. A BREEZE TO AUTOMATE YOUR HOME: The alexa door sensor works seamlessly with other Smart Life or Tuya system appliances in your home. Setting custom scenes in your smart home system, for example, Have your lights turn bright when your baby opens a storage area with potentially dangerous objects. Turn off the air conditioner when you open the windows in your room UPGRADED WIFI WINDOW DETECTOR: Our window sensors for security meet all your needs. You can disarm or arm the window alarm sensor on your app remotely, also you can set timed arming or disarming as your need; Set the alarm duration and alarm volume. Get alert notifications when your battery is running low. All the functions are designed to guard your home safety EASY INSTALLATION VALUE FOR MONEY: No Need to use complicated tools when install the WiFi Door Sensor Detector Smart, just use 3M glue to install,f irm and durable. The sensor door comes with TWO AAA Batteries. Plus, we offer a 24-month warranty on door and window sensor Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.