# Relay module Grenton GRE/REL-203-Z-01 Z-Wave 2-channel for smart home installation

**URL:** https://aio.lv/en/product--grenton-grerel-203-z-01--11165994
**Data updated:** 2026-06-25 19:50 (EEST)
**Category:** Home Automation
**Manufacturer:** Grenton
**Manufacturer code:** GRE/REL-203-Z-01
**EAN:** 5902983719809
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 129.99 €
**Prices and availability valid until:** 2026-08-15 23:59
**Price without VAT (21%):** 107.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--grenton-grerel-203-z-01--11165994

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 28.07.2026 | free |
| Pickup points | 31.07.2026 | 1.89 EUR |
| Courier delivery to door | 31.07.2026 | 4.99 EUR |

## Summary description

Grenton GRE/REL-203-Z-01 is a Z-Wave relay module with 2 independent channels designed for smart home installations. It provides remote switching of loads via Z-Wave network, integrates with compatible controllers and automations, and is suitable for lighting, small appliances or circuit control. Compact module for seamless integration and centralized control.

## Long description

The Grenton Z-Wave 2-channel relay module is a professional-grade component designed for modern smart home installations. This device enables the remote control of two independent electrical circuits, allowing users to manage lighting, small appliances, or other electrical loads seamlessly through a Z-Wave network. Its compact design ensures it can be easily integrated into standard electrical boxes, providing a reliable solution for centralized home automation.
Advantages
This relay module offers high reliability and flexibility for smart home systems by providing two independent channels in a single compact housing. It communicates via the Z-Wave protocol, which is known for its stability, low power consumption, and excellent range within residential environments. The module integrates effortlessly with compatible Z-Wave controllers, enabling complex automation scenarios and remote management from anywhere. Its robust construction ensures long-term performance, making it an ideal choice for both new installations and retrofitting existing electrical systems.
Suitable for
Controlling indoor and outdoor lighting circuits
Managing small household appliances
Integrating non-smart electrical devices into a Z-Wave ecosystem
Creating automated scenes and schedules for home energy management
This module may not be suitable for controlling high-power industrial equipment or devices that exceed the maximum load specifications of the relay. It is also not intended for use in environments with extreme moisture or temperatures outside the specified operating range, and it requires a compatible Z-Wave gateway to function as part of an automated system.
Key specifications
Communication protocol: Z-Wave
Number of channels: 2 independent channels
Installation type: Flush-mounted in electrical boxes
Compatibility: Z-Wave certified controllers
Installation should be performed by a qualified electrician to ensure safety and compliance with local electrical codes. The module is wired directly into the electrical circuit, with the Z-Wave controller then used to pair the device and configure its operational parameters. Once paired, the relay can be controlled via mobile applications, voice assistants, or automated logic defined in the central hub.
What to consider before purchase
Ensure your smart home hub supports the Z-Wave protocol
Verify that the electrical load of your devices does not exceed the relay capacity
Check available space in your electrical wall boxes for installation
Confirm that a neutral wire is available if required by your specific wiring configuration
For optimal performance, ensure the module is installed in a location with good Z-Wave network coverage. Avoid placing the device inside metal enclosures that may block the wireless signal. Regularly update your controller firmware to maintain compatibility and security.

## FAQ

### How much does the Relay module Grenton GRE/REL-203-Z-01 Z-Wave 2-channel cost, and is it available for purchase?

The price is 129.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 28.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Relay module Grenton GRE/REL-203-Z-01 Z-Wave 2-channel be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Grenton 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 Grenton 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

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