# Smart water heating thermostat Avatto ZWT100 Zigbee Tuya 3A — compact controller for electric water heaters

**URL:** https://aio.lv/en/product--avatto-zwt100-wh-3a--7395577
**Data updated:** 2025-11-26 10:22 (EET)
**Category:** Smart Sensors
**Manufacturer:** Avatto
**Manufacturer code:** ZWT100-WH-3A
**EAN:** 6976037360087
**Warranty:** 1 Year
**Availability:** Available for order
**Price:** 36.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 30.16 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--avatto-zwt100-wh-3a--7395577

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Avatto ZWT100 is a smart water heating thermostat compatible with Zigbee and Tuya ecosystems. Rated for 3A, it controls electric water heaters and inline heating elements, enabling remote temperature management, scheduling, and automation via Zigbee hub or Tuya app. Designed for compact installation, it provides reliable on/off control and helps save energy by precise temperature regulation.

## Long description

Avatto ZWT100 smart thermostat 3A ZigBee water heater TUYA is a compact controller designed to manage electric water heaters and inline heating elements. It uses an NTC sensor for temperature measurement with an accuracy of 1°C and provides on/off control of the actuator that supplies hot water for space heating. The device includes a Zigbee 3.0 module and integrates with Tuya and Smart Life ecosystems, and supports voice assistants such as Amazon Alexa, Google Assistant and Yandex Alice.
Advantages
The thermostat offers programmable scheduling with options for 5+2, 6+1 or 7-day profiles and up to six time periods per day, plus manual and automatic modes. It features an LCD display that shows the current mode, network status, set temperature, safety lock and current time, with adjustable brightness or the option to turn the screen off. Additional functions include a child lock, the ability to group multiple ZWT100 units for unified control and multi-user access via the app.
Suitable for
Control of compact electric water heaters and inline heating elements
Remote temperature management through Tuya or Smart Life
Integration into Zigbee smart home systems
Voice control scenarios with Alexa, Google Assistant or Yandex Alice
Key specifications
Manufacturer: Avatto
Model: ZWT100-WH-3A
Connectivity: Zigbee 3.0
Compatibility: Tuya, Smart Life
Voice control: Amazon Alexa, Google Home, Yandex Alice
Voltage: AC 95–220V 50/60Hz
Maximum load: 3A
Sensor: NTC
Display: LCD (adjustable brightness)
Accuracy: 1°C
Set temperature range: 5°C–60°C
Displayed temperature range: 0°C–51°C
Operating temperature: -5°C–50°C
Power consumption: \<1W
Dimensions: 86 × 86 × 40 mm
How to use
Install the Avatto ZWT100 according to the included instruction manual and connect it to the power supply and the actuator that controls the water heater. Pair the thermostat with a Zigbee hub or add it via the Tuya/Smart Life app on your smartphone or tablet to enable remote control. Use the touchscreen to change settings locally or configure schedules and modes through the app. For voice control, link the Tuya or Smart Life account with your chosen voice assistant and follow the assistant’s device discovery procedure.
Usage recommendations
For reliable operation, ensure installation by a qualified electrician, observe the specified voltage and maximum load (3A), and place the thermostat in an environment within the operating temperature range. Use grouping and scheduling features to optimize energy use and grant app access only to trusted household members. Keep the NTC sensor unobstructed for accurate temperature readings.

## FAQ

### How much does the Avatto ZWT100 Zigbee Tuya 3A water heating thermostat cost, and is it available for purchase?

The price is 36.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 118 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 13.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Avatto products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Avatto service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/7395577/51478587_large.webp