SONOFF SNZB-04 Zigbee Wireless Door/Window Sensor – SNZB-04 | Zigbee 3.0 Magnetic Contact Sensor, Open/Close Detection, eWeLink Smart Scene Automation.
Overview:
• SONOFF SNZB-04 is a compact Zigbee wireless door/window sensor designed to detect the open and close status of doors, windows, cabinets, drawers, and other access points.
• The sensor works through a magnetic contact system between the main sensor and the magnet, sending the status to the connected Zigbee gateway when the door or window opens or closes.
• It supports eWeLink App status monitoring, allowing users to check whether doors or windows are open or closed from the mobile app when paired with a compatible SONOFF Zigbee gateway.
• It can trigger smart scenes with compatible Wi-Fi and Zigbee devices, such as turning on lights when a door opens or sending notifications when a window is opened.
• This model is the standard version of the SONOFF door/window sensor. Compared with SNZB-04P, it uses a CR2032 battery and is more suitable for basic smart home monitoring and automation applications.
Key Features:
• Zigbee 3.0 door/window sensor for smart open/close detection.
• Magnetic contact detection for doors, windows, cabinets, and drawers.
• eWeLink App monitoring through compatible Zigbee gateway.
• Smart scene automation with SONOFF Zigbee and Wi-Fi devices.
• Can trigger actions such as turning lights on, sending notifications, or activating alarms.
• Battery-powered design for wireless installation.
• CR2032 battery for easy replacement.
• Low battery notification through supported app/gateway setup.
• 3M adhesive installation for quick mounting without wiring.
• Compact design suitable for home, office, cabinet, and storage monitoring.
• Requires a compatible Zigbee gateway for app control and automation.
Technical Specifications:
• Brand: SONOFF.
• Model Name: SNZB-04.
• Product Type: Zigbee Door / Window Sensor.
• Sensor Type: Magnetic contact sensor.
• Wireless Protocol: Zigbee 3.0 / IEEE 802.15.4.
• Detection Status: Open / Close.
• Battery Type: CR2032, 3V.
• Smart App: eWeLink App through compatible Zigbee gateway.
• Functions: Door/window monitoring, open/close status, smart scenes, app notifications, low battery notification.
• Material: PC.
• Color: White.
• Main Sensor Dimensions: 47 × 27 × 13.5 mm.
• Magnet Dimensions: 32 × 15.6 × 13 mm.
• Working Temperature: -10°C to 40°C.
• Working Humidity: 10%–95% RH, non-condensing.
• Installation Type: 3M adhesive mounting.
• Gateway Requirement: Requires compatible Zigbee gateway.
• Application: Door, window, cabinet, drawer, access point, smart security, lighting automation.
Applications:
• Door and window open/close monitoring.
• Smart home security scenes.
• Cabinet and drawer monitoring.
• Lighting automation when opening doors.
• Villa and apartment automation.
• Office and storage room monitoring.
• Entrance and balcony door monitoring.
• eWeLink Zigbee smart home projects.
• Basic Home Assistant / Zigbee automation through compatible gateway.
Connect Gates Recommendation:
• Recommended for basic smart home projects that need a simple Zigbee door/window magnetic sensor for open/close detection, smart scenes, and eWeLink monitoring. For newer design, stronger battery life, and tamper alert, use SONOFF SNZB-04P instead.