Temperature & Humidity Sensor User Manual

Product Overview

This manual covers two versions of the Temperature & Humidity Sensor: a WiFi version (Model TH08) and a Zigbee version (Model ZTH08). Both devices feature an LCD screen with a backlight, providing real-time indoor temperature and humidity readings.

The front of the device displays the Date, Time (in 24-hour or 12-hour system), Indoor Temperature, Indoor Humidity, and a Hook groove LED indicator. A reset button is located on the top, which can be pressed to trigger the backlight for approximately 10 seconds.

The device is powered by 3x LR03/AAA alkaline batteries, installed in the battery compartment located on the back.

Specifications

Checklist Before Using the Device

For WiFi Version (TH08):

• Your smartphone has connected to a 2.4GHz Wi-Fi network.
• You have entered the correct Wi-Fi password.
• Your smartphone is running Android 4.4+ or iOS 8.0+.
• If the number of devices connected to your Wi-Fi router is at its limit, consider disabling a device to free up a channel or try a different Wi-Fi router.

For Zigbee Version (ZTH08):

• A Tuya Zigbee gateway is available and connected.
• Your smartphone has connected to a 2.4GHz Wi-Fi network.
• Your smartphone is running Android 6.0+ or iOS 11+.
• If the number of devices connected to your Wi-Fi router is at its limit, consider disabling a device to free up a channel or try a different Wi-Fi router.

Setup and Connection

General App Steps:

1. Download the App: Scan the provided QR code or search for "Smart Life" in the Google Play Store or App Store to download and install the application. [QR code]

2. Create Account: Create an account using your mobile number and an authentication code.

WiFi Version (Model TH08) Setup:

3. Connect to Router: Connect your mobile device to your Wi-Fi router. In the "Smart Life" app, click the "+" icon in the upper right corner of the homepage, then tap "Add Device".

4. Select Device: Choose "Temperature and Humidity Sensor (BLE+Wi-Fi)" from the "Sensors" category.

5. Connection Modes:

• Bluetooth Mode: Follow the app's prompts to enable Bluetooth on your mobile. The app will search for the device. Enter your Wi-Fi name and password to connect automatically.
• Wi-Fi Mode (Blink Quickly): Select "Blink Quickly". Ensure the LED indicator on the device is blinking quickly. If not, press and hold the reset button for approximately 5 seconds until the indicator blinks quickly. The app will then proceed with the connection.
• Wi-Fi Mode (Blink Slowly): Select "Blink Slowly". Ensure the LED indicator is blinking slowly. If not, press and hold the reset button for approximately 5 seconds until the indicator blinks slowly. Connect your mobile device to the device's hotspot, typically named "SmartLife-XXXX". Return to the "Smart Life" app interface; it will automatically connect to your Wi-Fi router.

Zigbee Version (Model ZTH08) Setup:

3. Connect to Router: Connect your mobile device to your Wi-Fi router. In the "Smart Life" app, click the "+" icon in the upper right corner of the homepage, then tap "Add Device".

4. Select Gateway: Choose "Wireless Gateway (Zigbee)" from the "Gateway Control" section. Enter your Wi-Fi name and password.

5. Pairing Modes:

• Blink Quickly: Select "Blink Quickly". Ensure the blue light is on and the red light is blinking quickly. If not, press and hold the reset button for approximately 5 seconds until the red indicator blinks quickly. The device will then connect.
• Blink Slowly: Select "Blink Slowly". Ensure the red indicator is blinking slowly. If not, press and hold the reset button for approximately 5 seconds until the red indicator blinks slowly. Connect your mobile device to the device's hotspot, typically named "SmartLife-XXXX". Return to the "Smart Life" app interface; it will automatically connect to your Wi-Fi router.

6. Add Subdevice: Click "+ Add subdevice". Ensure the Wi-Fi signal indicator on the screen is flashing. If not, hold the reset button for approximately 5 seconds until it flashes. The gateway will automatically search for devices. Once added successfully, the sensor is ready for use.

Battery Installation:

Push the battery compartment cover downwards. Install 3 pcs Alkaline batteries (LR03/AAA), observing the correct positive (+) and negative (-) pole direction. Push the cover upwards to close.

Functions

1. Backlight Display

Press the reset button on the top once to trigger the backlight. It remains on for about 10 seconds, making it easier to read the screen in dark conditions.

2. Smart Linkage

Create automated scenes with other Tuya smart devices. For example, set the air conditioner to turn on automatically when the indoor temperature exceeds 30°C.

3. Temperature Unit Switch

Switch the temperature display unit between Fahrenheit (°F) and Celsius (°C) within the app's settings. Press the reset button once to synchronize the selected unit to both the device screen and the app.

4. Temp & Humidity Records

View historical temperature and humidity data, stored for up to one year. This data can be exported to your email address. [Graph icon]

5. Temp & Humidity Alarm

Set custom temperature and humidity ranges in the app's Scene page. The app will send an instant alarm message when these preset ranges are exceeded.

6. Temp & Humidity Calibration

Calibrate temperature and humidity readings within the app's settings. Select the desired calibration value, then press the reset button once to synchronize the adjusted values to the device screen and the app.

7. Third-Party Voice Control

Enquire about current temperature and humidity readings using voice commands via Amazon Alexa or Google Assistant smart speakers.

Frequently Asked Questions (FAQ)

1. When are the temperature and humidity readings most accurate?

Readings become more accurate and reliable approximately 30 minutes after configuration is completed, allowing the sensor to acclimate to the actual ambient environment.

2. What if the temperature and humidity on the screen are not synchronized with the data in the app?

This can occur if the deviation between the screen display and the app data exceeds:

• ±0.5°C for temperature.
• ±5% for humidity.

3. When are the temperature and humidity readings synchronized between the screen and the app?

Synchronization occurs:

• After network configuration is completed.
• When the device reports temperature and humidity data to the Tuya cloud.
• When the device detects significant environmental changes:
  • Temperature change of ±0.5°C or humidity change of ±5% will trigger an update every 2 minutes.
  • Temperature change less than ±0.5°C or humidity change less than ±5% will trigger an update every 1 hour.
• When the backlight is triggered, readings on the screen are locked for 2 minutes. If the backlight is triggered again within 2 minutes, readings are locked for up to 15 minutes.

4. Please keep the device away from any heat source.

To ensure accurate readings, avoid placing the sensor near heat sources.

5. How to calibrate Fahrenheit?

To calibrate Fahrenheit, first calibrate Celsius, then switch the unit to Fahrenheit in the app settings.

6. Battery usage and network connection advice.

Use only alkaline batteries. Configure the network connection immediately after installing batteries. Ensure the network is stable; an unstable or offline network connection will cause the sensor to continuously search, significantly consuming battery power.

7. Voice commands for Alexa and Google.

Examples of voice commands include:

• "OK Google, what is the [device] humidity?"
• "OK Google, what is the [device] temperature?"
• "Alexa, what is the [device] humidity?"
• "Alexa, what is the temperature of [device name]?"