Introduction

Zigbee Temperature Humidity Sensor

User Manual V1.0

SNZB-02B is a low-power, screen-free temperature and humidity sensor that can monitor environmental temperature and humidity in real time. It can be easily hung or attached, making installation simple. By setting smart scenes, it helps keep you in a comfortable environment at all times.

High Accuracy

Temperature & Humidity Monitoring

App Monitoring

Dew Point Measurement

Data Storage & Export

Smart Scene

width="100" Note: The above features depend on the capabilities of the Zigbee gateway.

① Pairing Button

· Long press for 5s: Enter pairing mode (180s duration)

· Long press for 10s: Restore factory settings

② Indicator Light

· Slow flashing (180s): 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

Specification
AirGuard TH Lite

Product Series

AirGuard Series


Product Name

Zigbee Temperature Humidity Sensor


Model

SNZB-02B


MCU

TLSR8656


Input

3.0Vwidth="100" (2×1.5V batteries)


Battery Model

LR03 AAA


Wireless Connection

Zigbee 3.0 (IEEE 802.15.4)


Net Weight

43.0g (including batteries)


Color

White


Dimensions

66.3×27.8×20mm


Casing Material

PC


Application Environment

Indoor


Operating Temperature

-20°C ~ 60°C


Operating Humidity

5-95%RH (non-condensing)


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

Locate the battery cover latch and pry it open using a tool, then take out the battery insulation sheet to 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.

 width="100" If no pairing is completed within 3 minutes, the device will exit pairing mode. To re-enter, press and hold the button for 5 seconds until the indicator flashes slowly.

Add a Device

① Add SONOFF Zigbee Gateway

Compatible Gateways

Recommended SONOFF Gateways

ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost

Other Compatible SONOFF Gateways

ZBDongle-P, ZBDongle-E, Dongle-M, Dongle-PMG24, Dongle-LMG21

Enter “Scan QR code”

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

Wait until the device is added

Third-Party Compatible Gateways

Third-Party Compatible Gateways

Samsung gateway models

SmartThings hub V3, AeoTec Smart Home Hub V3

Amazon gateway models

Echo Plus 2nd, Echo 4th Gen, Echo Show 2nd

width="100"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

Hang with the lanyard

Stick to the wall with 3M adhesive

Place freely

width="100" This device is intended for installation at a height of no more than 2m.

Replace the battery

Locate the battery cover latch and pry it open using a tool.

width="100" If replacing the batteries, use the same type of battery.

Factory Reset

  1. Tap the “Delete device” button in the eWeLink App;
  2. Press and hold the pairing button for 10 seconds until the indicator flashes five times.

The device will then be restored to factory settings.