🚪 SONOFF SNZB-04P Zigbee Door/Window Sensor
Smart. Secure. Seamless.
Keep your home safe and connected with the SONOFF SNZB-04P, a compact and reliable Zigbee 3.0 sensor designed to monitor doors and windows with precision. Whether you're automating scenes or enhancing security, this sensor is your go-to solution for smarter living. 🏠🔐
🌟 Features
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🔧 Plug & Play Zigbee 3.0 Instantly integrates with Home Assistant via ZHA or Zigbee2MQTT—no coding required!
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🔋 Ultra-Long Battery Life Powered by a CR2477 battery, offering 5+ years of operation without frequent replacements. 🔄
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🚨 Tamper Alert Built-in tamper detection sends instant notifications if the sensor is disturbed—peace of mind, 24/7. 📲
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📡 Local Scene Linkage Even if Wi-Fi goes down, Zigbee local scenes stay active—ensuring uninterrupted automation. ⚡
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📏 Compact Design Transmitter: 50.5×32×21.9mm Magnet: 27×12×12.4mm Perfect for tight spaces and discreet installations. 🧩
🧠 Smart Applications
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🏡 Front door / back door monitoring
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🪟 Window security
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🖥️ Office automation
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🚪 Cabinet or drawer alerts
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🛡️ Restricted area access (e.g., prisons or labs)
Specification
| MCU | EFR32MG22 |
| Input | CR2477（3V） |
| Colour | White |
| Product dimension | Transmitter（50.5x32x21.9mm）Magnet（27x12x12.4mm） |
| Net weight | 33g |
| Casing materials | PC |
| Wireless connection | Zigbee 3.0 IEEE802.15.4 |
| Pairing time | 180s |
| Communication distance | Indoor environment 30m |
| Applicable place | Indoor |
| Installation distance | ≤20mm |
| Working temperature | -10°C ~ 60°C |
| Working humidity | 5-95%RH, non-condensing |
| Working height | Less than 5000m |
Hardware Overview
| ①Transmitter | ②Button | ③LED indicator(RED) |
| ④Battery cover | ⑤ALignment mark for installation | ⑥Magnet |
Application
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🧠 Smart Home Automation Seamless integration with your connected living space.
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🚪 Entry Points Monitor front doors, backyards, and gates for enhanced security.
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🪟 Windows Detect unauthorized access or environmental changes.
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🖥️ Office Spaces Secure cabinets, meeting rooms, or sensitive equipment zones.
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🛡️ Restricted Areas Ideal for high-security zones like prisons, labs, or data centers.
Part List
| Transmitter | x1 |
| Magnet | x1 |