---
title: "Sonoff SNZB-04P Door and Window Sensor - Real Home Automations"
description: "Long-life Zigbee magnetic contact with open/close and tamper events."
canonical: "https://realhomeautomations.com/en/product/sonoff-snzb-04p-door-and-window-sensor/"
language: en-US
updated: 2026-10-16T23:27:50+00:00
---

# Sonoff SNZB-04P Door and Window Sensor - Real Home Automations

Long-life Zigbee magnetic contact with open/close and tamper events.

> Canonical HTML page: https://realhomeautomations.com/en/product/sonoff-snzb-04p-door-and-window-sensor/

- **SKU:** 6920075740646
- **Price:** 10.53 €
- **Availability:** In stock
- **Brand:** Sonoff
- **Categories:** Security, Sensors

Long-life Zigbee magnetic contact with open/close and tamper events.

## Know when a door, window or cupboard changes state

The SNZB-04P provides simple open and closed events for security notifications, heating setbacks and lighting automations. A tamper event helps identify unwanted removal.

### Key specifications

- Zigbee 3.0
- Magnetic contact with 20 mm maximum gap
- Tamper alert
- CR2477 battery included
- Designed for multi-year battery life

**Mounting:** Align the sensor and magnet carefully and verify both states before relying on an automation.