Introduction
Zigbee LCD Smart Thermometer
User Manual V1.0
The SNZB-02LD is a Zigbee smart temperature sensor designed for waterproof. It detects the temperature of liquids or enclosed spaces through its probe and displays real-time data on an LCD high-definition screen. Paired with a Zigbee gateway, it allows temperature monitoring via the app or setting up scenes with other devices to achieve home automation.
App Monitoring
Push Notification
Reading Switch
Probe Temperature
Measurement
UV-Resistant
Casing
IP65 Protection
Rating
① Probe
② Signal icon
• Flashes slowly: Device is in pairing mode. (Pairing time 180s）
• Keeps on: Pairing successful
• Keeps off: Pairing failed
③ Lanyard hole
④ Battery
⑤ Current temperature
⑥ Button（Visible after removing the device’s battery cover）
• Press and hold for 5 seconds: The device enters pairing mode and restores factory settings.
• Double-press: Switch temperature unit ℃/℉ (Factory default is ℃)
Specification
Model
SNZB-02LD
MCU
Input
3V⎓
Battery model
CR2477
Wireless connection
Zigbee 3.0 (IEEE802.15.4)
LCD dimension
2.2”
Net weight
86.2g
Color
White
Product dimension
62.8×58.5×21.8mm
IP rating
IP65
Casing material
PC+ABS
Applicable place
Indoor
Working temperature
-20℃~60℃/-4°F~140°F
Working humidity
0~100%RH
Temperature tolerance
±0.5℃/±0.9℉
Humidity tolerance
±2%RH
Working height
Less than 2000m
Certification
CE/FCC/ISED/RoHS
IC
29127-SNZB02L
FCC ID
2APN5SNZB02L
⚠︎ It is suitable for safe use only when the altitude is below 2000m. Security risks may arise when the altitude is above 2000m.
IP65 Protection Rating Description:
⚠︎ This product’s protection rating is suitable for standard splash-proof scenarios. Avoid submerging the main unit or exposing it to high-pressure water jets.
Add a Device
Download the eWeLink App & Add SONOFF Zigbee Gateway
Please download the “eWeLink” App from Google Play Store or Apple App Store.
Power on the device
Use a coin to twist and remove the battery cover.
Take out the battery insulation sheet to power on the device.
When the device is used for the first time, it will enter pairing mode by default after being powered on, and the signal icon is in a “slow flashing state”.
If the device is not paired within 3 minutes, it will exit pairing mode. To re-enter pairing mode, use a card pin to press and hold the device button for 5 seconds until the signal icon is in a “slow flashing state”.
Scan QR code to add the device
Enter “Scan QR code”
Scan the QR code of the device
Select “Add Device”
Long press the pairing button for 5 seconds.
The Signal icon flashes slowly for 180s.
Select Zigbee gateway.
Wait until the addition is done.
Matched Gateways
SONOFF ZBBridge, ZBBridge-P, ZBBridge-U, NSPanel PRO, iHost, ZBDongle-P, ZBDongle-E
Third-party compatible gateway models:
Amazon Gateway Model: Echo Plus 2nd, Echo 4th Gen, Echo Show 2nd
Other gateways supporting ZigBee3.0 wireless protocol. Detailed information is in accordance with the final product.
Effective Communication Distance Verification
Place the device in your desired place and press the device’s pairing button, then the signal icon on the screen keeps on, which means the device and the device (router device or gateway) under the same Zigbee network are in the effective communication distance.
Installation
1. Fix the probe
Tear off the Velcro adhesive and fix the probe to the location where detection is required
(for example: in the refrigerator, next to the swimming pool and so on).
2. Host placement
Magnetic suction to the metal surface.
Thread the lanyard through the device hole and hang the device.
⚠︎ The equipment is only suitable for mounting at heights ≤ 2m.
Replace the Battery
Use a coin to twist and remove the battery cover.
Remove the battery cover before replacing the battery.
Factory Reset
In the eWeLink App, select “Delete Device,” or use a card pin to press and hold the device button for 5 seconds to restore factory settings.