# Paradox SM1 relay module for connecting 2-wire fire detectors

**URL:** https://aio.lv/en/product--paradox-sm1--4191079
**Data updated:** 2026-01-29 20:52 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Paradox
**Manufacturer code:** SM1
**EAN:** 3100000574017
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.44 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 6.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--paradox-sm1--4191079

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Paradox SM1 is a relay module designed to connect 2-wire fire detectors to compatible Paradox security panels. It provides an interface that converts detector signals into relay outputs for integration with alarm systems. Suitable for expanding detector compatibility, the module simplifies wiring, enables reliable signal transmission, and supports centralized monitoring and alarm activation.

## Long description

Paradox SM1 relay module for connecting 2-wire fire detectors provides an interface that allows conventional 2-wire smoke or heat detectors to be integrated with compatible Paradox security control panels. The module converts detector signals into relay outputs so alarm events and fault conditions can be reported and processed by the central alarm system. Designed for straightforward installation, SM1 helps reduce wiring complexity while enabling monitoring and alarm activation within an existing Paradox alarm architecture.
Advantages
The relay module supports reliable signal transmission from 2-wire fire detectors to Paradox control panels, enabling centralized event handling and reducing the need for panel-side detector supplies. SM1 simplifies wiring by offering a dedicated interface for conventional detectors, improving compatibility without major panel modifications. The module provides a clear relay output that can be wired into alarm zones or auxiliary inputs, facilitating integration with monitoring, logging, and notification functions.
Suitable for
 Connecting conventional 2-wire smoke detectors to Paradox security panels
 Integrating heat detectors and other 2-wire fire sensors with alarm systems
 Expanding detector compatibility in retrofit or upgrade projects
 Centralized monitoring setups where relay outputs are required for alarm signalling
Key specifications
 Interface type: relay output for conventional 2-wire fire detectors
 Compatibility: designed for use with compatible Paradox control panels
 Signal conversion: detector input to relay contact for alarm and fault reporting
 Installation: module intended for in-panel or nearby mounting to simplify wiring
 Wiring: supports standard two-conductor detector cabling
How to use
Mount the SM1 module according to the panel manufacturer’s installation guidelines, positioning it close enough to the panel and detectors to maintain proper wiring lengths. Connect the two-wire detector leads to the module input terminals and wire the relay output contacts to the appropriate zone or auxiliary input on the Paradox control panel. Configure the panel inputs per Paradox documentation so that relay closures from the SM1 are interpreted as alarm or fault conditions. Perform detector and system tests after installation to confirm correct signalling and alarm propagation.
Usage recommendations
Verify compatibility with your specific Paradox control panel model prior to installation and follow local fire and electrical codes. Use appropriate wire gauge for the detector circuit and avoid running detector cabling in the same conduits as high-voltage power lines to reduce interference. Regularly test connected detectors and the relay interface as part of routine maintenance to ensure reliable alarm operation.

## FAQ

### How much does the Paradox SM1 relay module cost, and is it available for purchase?

The price is 7.44 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 02.07.2026 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 Paradox 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 Paradox 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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