# Internal Alarm Siren TST SV-97 — indoor siren for security systems, wired connection

**URL:** https://aio.lv/en/product--tst-sv-97--12030098
**Data updated:** 2026-03-12 16:38 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** TST
**Manufacturer code:** SV-97
**EAN:** 5902887072819
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tst-sv-97--12030098

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

TST SV-97 is an internal alarm siren designed for integration with wired security systems. It provides audible alerting from inside premises and is intended for indoor installation. The unit complements alarm control panels by emitting a loud alarm tone when triggered, supporting basic wired connections and mounting for residential or commercial security setups.

## Long description

TST SV-97 is an internal alarm siren designed for indoor use with wired security systems. The device is intended to be mounted inside premises and connected to an alarm control panel via standard wired terminals. When triggered by the control panel, the siren produces a loud audible alarm to alert occupants and deter intruders. The compact enclosure and conventional wiring interface make the unit suitable for integration into both residential and commercial alarm installations.
Advantages
The siren delivers clear, high-volume acoustic signaling compatible with wired alarm inputs, enabling prompt audible notification of alarms. Its indoor design and compact form factor simplify installation in hallways, utility rooms or other interior locations. The unit uses a basic wired connection that integrates easily with many alarm control panels and provides reliable operation without requiring wireless pairing or additional network configuration.
Suitable for
 Residential alarm systems requiring an indoor audible alert
 Commercial premises where a wired interior siren is needed
 Integration with alarm control panels using conventional wired outputs
 Replacement or addition to existing wired siren installations
Key specifications
 Indoor use, wall or surface mounting
 Wired connection to alarm control panel terminals
 Acoustic alarm output suitable for indoor audible signaling
 Compact enclosure for unobtrusive interior installation
How to use
Install the siren on an interior wall or suitable flat surface at a height that provides effective sound distribution. Connect the siren’s wiring to the alarm control panel following the panel manufacturer’s wiring diagram for external sirens or auxiliary outputs. Ensure power and triggering circuits are de-energized during installation, secure mounting hardware, and verify polarity and terminal connections before reapplying power. After installation, perform a functional test by triggering the alarm via the control panel and confirming the siren emits sound as expected.
Usage recommendations
Place the siren where its sound can reach key areas without being obstructed by large structural elements. For reliable operation, use appropriate cable types and gauge recommended by the alarm control panel documentation, and route wiring to avoid interference or physical damage. Regularly inspect the mounting and wiring during routine maintenance checks to ensure continued function.

## FAQ

### How much does the Internal Alarm Siren TST SV-97 cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 16 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 03.07.2026 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 TST 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 TST 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/12030098/67517772_large.webp