Description
- High-concerned chemical: None
- Model Number: ZWT198
- Wattage: 4.5V Battery
- Brand Name: AVATTO
- Certification: CE
- Origin: Mainland China
Please review in detail
1.Power Supply: Install 3 x 1.5V AA alkaline batteries (type LR6)。(Refer to the manual for wiring methods)
2.Connection Method:
① WiFi Version: After turning on the thermostat, press and hold the Up button until the WiFi indicator flashes, indicating the device is in pairing mode. Use the mobile app to connect. Use the AVATTO app, which supports Tuya/Smart Life。(WiFi must be 2.4G)
② ZigBee Version: After turning on the thermostat, press and hold the Up button until the WiFi indicator flashes, indicating the device is in pairing mode. Use the mobile app to access the gateway and then connect the device. Use the AVATTO app, which supports Tuya/Smart Life。(The ZigBee version requires a gateway for connection; WiFi must be 2.4G)
3.Voice Control: After connecting to the app, authorize the voice assistant within the app, and then you can control the device via voice commands。
4.Troubleshooting:
① Garbled LCD Display: If the rear cover mounting area becomes deformed, you can loosen it and then reinstall it。
② Incorrect Temperature Data: Adjust via the first calibration panel in the advanced options。
5.Customer Support: If you encounter any issues, please contact our store’s customer service promptly. Our professional support team will assist you in resolving the problem。
HIGHLIGHT
【Powered By Battery】-Do not need install separate AC power, easy to install.
【Three Modes Are Optional】-Manual mode / Program mode / Temporary Program mode
【Weekly Programmable】-5+2/6+1/7 days a week, 6 time slots on weekdays, 2 time slots on rest days, support different temperature setting and run in schedule.
【Backlight Brightness Adjustable】-Backlight can be adjust and turn off, to avoid disturbing sleep
【Precise Temperature Control, More Comfortable】-Temperature hysteresis:0.5~10℃/Minimum temperature setting:0.5℃/Upper and lower limits of temperature:15~95℃
【Temperature Calibration】-Display room temperature can be calibrate from 9.9°C to-9.9°C
【Anti-frost function】-If the Water Gas Boiler is not turned on for a long time, the thermostat will automatically turn on for a short time
【Group-Control Function】-Realize group control in different room in special scene
SPECIFICATION
–Temperature sensor:NTC
–Temperature precision:±1°C
–Self-consumed:<170uW
–Voltage:three1.5V batteries
–Load current:3A(negative)
–Protection grade:IP20











































































































































































































































T***o (verified owner) –
Installed in no time instead of a non-smart thermostat, configured on Home Assistant with zigbee2mqtt in seconds and everything works. The temperature sensor detects the same temperature as the old thermostat. However, if needed, it can be calibrated via z2m.
V***a (verified owner) –
I recommend buying the WiFi model. I bought two of them. I am very satisfied with the purchase; I needed a simple model. It has adjustable thermal hysteresis, and it’s better programmed from the app because the monitor turns off after a few seconds to save batteries. Remotely, it can be turned on by setting a scene mode=temporary, switch=ON, and then heating.
T***s (verified owner) –
Super simple 2 wire installation like old thermostat. Only little issue is the wires need to come in from the top or the unit will not close.
c***z (verified owner) –
It fulfills its function well, works perfectly with Wi-Fi, and the Smart Life app can control more things, like in my case the air conditioner. By size, if you have a mechanism box it fits perfectly. How does it work? I would say that it lacks an option for the screen to always be on so that you can see the data without having to touch it, because when you press the button, the heating turns on at the same time as the screen. But in summary, for the price it has, it fulfills its function and that’s why I give it all the stars.
C***A (verified owner) –
One of the best purchases I have made. It works perfectly with batteries or rechargeable batteries. It has a USB port to recharge the batteries. Batteries are not included. It works well with Alexa and everything is set up via Wi-Fi.
AliExpress Shopper (verified owner) –
It works very well thanks to Chat GPT, which helped me properly connect the cables. After a week, the battery life remains the same. The app for the device is very intuitive; you can program the heating from outside the home, but it can only be configured on a single mobile device. The purchase is recommended… the shipping took only 5 days.
AliExpress Shopper (verified owner) –
Excellent product, connects with both Alexa and Google Home via Tuya, works well and can be controlled remotely. It can be powered either via USB-C or with 3 AA batteries, and the temperature can be set and read from the Tuya app. Recommended product.
AliExpress Shopper (verified owner) –
I’m really very happy
The connection with Smart Life is perfect.
Power the thermostat either with the light via USB-C or with batteries, open the Smart Life app and the WT198 thermostat will appear. Select “Add” and select your WiFi network and the password of your router, keep the phone close to the thermostat, both on the same WiFi network in your home.
The installation on the wall is perfect since the holes are in the same place where the old analog thermostat was located.
With alkaline batteries, the display only lasts two or three seconds on, which is logical for saving battery life.
It would be nice if these could be charged using a USB-C connection and rechargeable batteries when the battery is low, as an additional feature to improve the product.
It is beautiful and sturdy, and I would not hesitate to buy another one just like it.