Introduction
Zigbee Temperature Humidity Air Pressure Sensor
User Manual V1.0
The SNZB-02M is a low-power temperature, humidity, and air pressure sensor with no display, designed to provide real-time and accurate environmental monitoring. It supports both adhesive mounting and magnetic attachment for quick and convenient installation. Used with a Zigbee gateway, the device supports features such as Air pressure calibration, unit switching, and comfort level settings. It also enables smart scene automation to automatically adjust environmental conditions, helping maintain a consistently comfortable living space and delivering a seamless smart home experience.
High Accuracy
Temperature & Humidity Monitoring
App Monitoring
Dew Point Measurement
Air Pressure Monitoring
Smart Scene
The above features depend on the capabilities of the Zigbee gateway.
① Indicator Light
- Slow flashing: Device is in pairing mode
- Solid on for 3s then off: Pairing successful
- Stops slow flashing, remains off: Pairing failed
- Flashes once: Not added to the gateway, short press pairing button
- Flashes twice: Added to the gateway, short press pairing button
- Two short flashes and one long: Communication abnormal, reconnecting
- Flashes five times quickly: Factory reset, long press 10s pairing button
② Pairing Button
- Long press for 5s: Enter pairing mode (180s)
- Long press for 10s: Restore factory settings
Specification
Product Series
AirGuard Series
Product Name
Zigbee Temperature Humidity Air Pressure Sensor
Model
SNZB-02M
MCU
EFR32MG22C224F512GN32
Input
3.0V
Battery Model
CR2477
Zigbee
IEEE 802.15.4
Net Weight
27.3g (including battery)
Color
White
Dimension
45 x 45 x 17.6mm
Casing Material
PC
Application Environment
Indoor
Operating Temperature
-20℃~60℃
Operating Humidity
5-95%RH (non-condensing)
FCC ID
2APN5-SNZB02M
Certification
CE/FCC/RoHS
Download the eWeLink App & Add SONOFF Zigbee gateway
Please download the “eWeLink” App from the Google Play Store or Apple App Store.
Power On the Device
After powering on, the device enters pairing mode by default on first use, with the indicator flashing slowly for 180 seconds.
Add a Device
① Add SONOFF Zigbee Gateway
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Compatible Gateways |
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Recommended SONOFF Gateways |
ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost |
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Other Compatible SONOFF Gateways |
ZBDongle-P, ZBDongle-E, Dongle-M, Dongle-PMG24, Dongle-LMG21 |
Enter “Scan”
Scan the QR code on the device
Select “Add Device”
(If the device exits pairing mode) Long press the button for 5 seconds
The LED indicator flashes slowly for 180s
Select Zigbee gateway
Wait until the device is added
Third-Party Compatible Gateways
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Third-Party Compatible Gateways |
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Samsung gateway models |
SmartThings hub V3, AeoTec Smart Home Hub V3 |
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Amazon gateway models |
Echo Plus 2nd, Echo 4th Gen, Echo Show 2nd |
Other gateways supporting Zigbee 3.0 protocol and temperature & humidity sensors. Please confirm with the gateway manufacturer.Effective Communication Distance Verification
Install the device in the desired place, then press the Pairing button on the device. The LED indicator flashes twice, indicating that the device and other devices on the same Zigbee network (the router device or hub) are in the effective communication distance.
Installation
Method 1: Attach magnetically to a metal surface
Method 2: Secure the metal plate with screws
Method 3: Secure the metal plate using 3M adhesive tape
This device is intended for installation at a height of no more than 2m.Replace the battery
Use the eject pin to press the latch while rotating the back cover with a coin or other tool, then pry the cover open.
If replacing the battery, use the same type of battery.Factory Reset
Trigger Conditions (Any one of the following conditions is met)
- Tap the “Delete device” button in the eWeLink App.
- Press and hold the pairing button for 10 seconds until the indicator flashes five times.
The device will then be restored to factory settings.