# External Siren Telmor TSZ-4D — outdoor alarm siren, model TSZ-4D

**URL:** https://aio.lv/en/product--telmor-tsz-4d--11943856
**Data updated:** 2026-03-10 11:49 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** Telmor
**Manufacturer code:** TSZ-4D
**EAN:** 5902887085543
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 33.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--telmor-tsz-4d--11943856

## 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 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

External alarm siren Telmor TSZ-4D designed for outdoor installation as part of security and alarm systems. The TSZ-4D provides audible and visual signaling for intruder alerts and system status. Intended for use with compatible control panels and detectors, it serves residential and commercial perimeter protection, warning neighbors and responders with a robust external alert device.

## Long description

The Telmor TSZ-4D external siren is an outdoor alarm siren designed for integration with security and alarm systems. Built for perimeter signaling, it provides both audible and visual alerts to indicate intruder alarms and system status. The TSZ-4D is suitable for installation on residential and commercial buildings where reliable external notification is required and is compatible with standard alarm control panels and detectors.
Advantages
The TSZ-4D offers a combination of loud acoustic output and visible flashing to ensure events are noticeable at a distance. Its enclosure is designed for outdoor use, protecting internal components from weather and allowing continuous operation in typical external conditions. Installation is straightforward with common wiring connections for power and alarm input, enabling quick integration into existing alarm systems. The unit's design supports clear signaling of alarm states and contributes to perimeter deterrence.
Suitable for
 Perimeter protection of residential properties
 Exterior notification for small and medium commercial premises
 Integration with wired alarm control panels and detectors
 Situations requiring both audible and visual external alerts
Key specifications
 Outdoor-rated enclosure suitable for external mounting
 Combined audible siren and visual strobe output
 Wired power and alarm input connections compatible with standard alarm panels
 Designed for perimeter and external warning applications
 Materials and finish suitable for exposure to weather conditions
How to use
Mount the siren on an external wall or mast at a location that provides clear sound propagation and visible line-of-sight for the strobe. Connect the unit to the alarm control panel following the panel manufacturer's wiring diagram: provide the required supply voltage and wire the alarm input/output terminals so the panel can trigger the siren during alarm events. Verify polarity and secure cable entries to maintain enclosure weather protection. After installation, test the siren function from the control panel to confirm audible and visual signaling and adjust mounting position if necessary for optimal coverage.
Usage recommendations
Position the TSZ-4D at a height that avoids vandalism but preserves sound and light dispersion; routinely inspect mounting hardware and cable glands for integrity and clean the strobe cover to maintain visibility. Use within the compatible voltage and wiring limits specified by the alarm control panel manufacturer.

## FAQ

### How much does the External Siren Telmor TSZ-4D cost, and is it available for purchase?

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 Telmor 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 Telmor 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/11943856/67386701_large.webp