Zigbee SONOFF SNZB-04P Door and Window Opening Detector

Powered by a high-capacity CR2477 battery, it offers over five years of battery life without frequent replacement, making it one of the longest-lasting in its category. As soon as a door or window opens, the SONOFF SNZB-04P Zigbee door and window sensor instantly triggers an alert on the eWeLink app and can activate lights, audible alarms, or notifications according to configured automations. A compatible Zigbee 3.0 hub is required.

Anti-tamper alert, local scenes, and extensive compatibility

The SNZB-04P's integrated anti-tamper protection sends an immediate alert if someone tries to manipulate or remove the sensor, enhancing the overall security of the installation. Zigbee scenes run locally even without an internet connection, as long as devices remain powered, ensuring continuity of automations in all circumstances. Compatible with SONOFF Zigbee hubs (NSPanel Pro, iHost, ZB Bridge Pro, ZBDongle-E) as well as some Zigbee-compatible platforms like Home Assistant. Status information can also be viewed via Alexa, Google Home, SmartThings, or IFTTT depending on the gateway used.

Five years of hassle-free use and ultra-fast installation for the SONOFF SNZB-04P Zigbee door and window sensor

The 50.5 × 32 × 21.9 mm transmitter and 27 × 12 × 12.4 mm magnet attach in seconds via adhesive to any frame, with a maximum installation distance of 20 mm between the two parts. The SNZB-04P operates from -10°C to +60°C and supports humidity up to 95% RH, making it usable in various environments such as a laundry room, basement, or exposed entrance. Its white PC casing discreetly blends into all joinery without drawing attention.

FAQ

Is the SNZB-04P compatible with Philips Hue or IKEA Dirigera hubs?

No, the SNZB-04P is not compatible with Philips, IKEA, or Fritzbox gateways. It works with the listed SONOFF Zigbee 3.0 hubs (NSPanel Pro, iHost, ZB Bridge Pro, ZBDongle-E) as well as compatible Zigbee dongles for Home Assistant.

Do automations continue to work without an internet connection?

Yes, Zigbee scene bindings between compatible devices run locally as long as the devices are powered, regardless of the internet connection or eWeLink cloud status.

What is the maximum distance between the sensor and the magnet during installation?

The maximum installation distance between the transmitter and the magnet is 20 mm when closed. Beyond this distance, the sensor may interpret the door or window as open and trigger a false alarm.

Is the SNZB-04P compatible with Home Assistant?

Yes. The SNZB-04P can be integrated into Home Assistant via Zigbee2MQTT or ZHA using a compatible Zigbee coordinator, such as the SONOFF ZBDongle-E.

Specifications