Keep track of every door and window in real time. This compact, wireless open/close sensor sends instant alerts to your phone, works with voice assistants, and runs months on regular batteries—no wiring required. Key benefits Instant detection and phone alerts: Realtime monitoring via 2.4 GHz WiFi + BLE. Get immediate notifications when doors or windows open or close so you always know when access occurs. Easy, notool installation: Magnetic sensor mounts quickly on door or window frames. No wiring required and setup takes about five minutes. Long battery life: Runs on 2x AAA batteries with ultralow power consumption for up to approximately 6 months under normal use. Smart home compatible: Pair with the Smart Life or Tuya Smart app for remote control and history. Works with Alexa and Google Assistant for voice queries and automations. Reliable and focused connectivity: Uses 2.4 GHz WiFi and BLE. Not compatible with 5 GHz, 6 GHz, or Zigbee networks. Make sure the sensor is placed where 2.4 GHz WiFi has a good signal. How it solves problems Protects your home and gives peace of mind by notifying you immediately of unexpected entry. Keeps children and pets safer by alerting you when doors or gates open. Eliminates the hassle and cost of wiring while fitting existing smart home setups via common apps and voice platforms. Typical use scenarios Front door security: Receive alerts if a door opens while you are away or asleep. Garage and gate monitoring: Check garage or gate status at a glance and automate lights when access occurs. Cabinets and pet doors: Monitor liquor cabinets, safety boxes, or pet doors for unwanted access. Compatibility and performance Connectivity: 2.4 GHz WiFi + BLE (does not support 5 GHz/6 GHz/Zigbee) App: Pair via Smart Life or Tuya Smart Voice control: Works with Alexa and Google Assistant (examples: 'Alexa, is the garage door closed?' 'Hey Google, check the sensor's battery!') Power: 2x AAA batteries, ultralow power consumption, up to 6 months battery life depending on usage Installation: Surfacemount magnetic sensor, no wiring needed, quick 5minute setup Design: Compact, lowprofile sensor suitable for doors, windows, gates, cabinets, and more What to check before installing Confirm the installation location is covered by a stable 2.4 GHz WiFi signal This device does not operate on 5 GHz or 6 GHz WiFi networks and is not compatible with Zigbee hubs Simple specification summary Function: Open/close detection with realtime alerts Connectivity: 2.4 GHz WiFi + BLE App support: Smart Life, Tuya Smart Voice assistants: Alexa, Google Assistant Power: 2x AAA batteries, 6 months Installation: No wiring, mounts to doors, windows, cabinets, gates, etc. This sensor is a straightforward, reliable addition to an existing smart home or security setup for realtime access monitoring and simple automation.