# Siemens 531731ex Dot1151A AG 20W Smoke Detector - Cerberus Series

The Siemens Cerberus **Smoke Detector 531731ex Dot1151A AG 20W** offers unparalleled safety and reliability for any environment. Engineered for rapid and accurate smoke detection, this device is ideal for industrial, commercial, and residential applications, ensuring early warning and minimizing potential damage.

This Siemens smoke detector is designed to perform within a wide temperature range of -25°C to 70°C and is certified with EN54-7 and Eex Ib Iic T4 standards. Classified as II 2G Ptb 02 Atex 2098 0102, its robust design guarantees consistent performance and adherence to the highest safety regulations. The Cerberus series is synonymous with quality and reliability in fire safety.

-   **High Sensitivity**: Quick and accurate smoke detection.
-   **Wide Temperature Range**: Operates reliably from -25°C to 70°C.
-   **Certified Safety**: Meets EN54-7 and Eex Ib Iic T4 standards.
-   **Lightweight Design**: Easy to install and maintain.
-   **Robust Construction**: Ensures long-term reliability.

**Specifications:**  
Type: Dot1151A-ex 531731 Ag Q018  
Certifications: EN54-7, Eex Ib Iic T4, II 2G Ptb 02 Atex 2098 0102  
Operating Temperature: -25°C to 70°C  
Weight: 150 grams  
COO: CH

Trust Siemens Cerberus for dependable fire safety solutions. The **531731ex Dot1151A AG 20W smoke detector** is engineered for performance and built to last, providing peace of mind in critical safety applications. Upgrade your safety systems today.

[Contact us](mailto:info@ramautomations.com) at info@ramautomations.com for more information.

## Details

- **Price:** 999.0 USD
- **Vendor:** Siemens
- **Type:** Electronics > Safety & Security > Smoke Detectors
- **Tags:** 531731ex, cerberus, fire safety, home security, industrial safety, ram automations, siemens, smoke detector

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Siemens 531731ex Dot1151A AG 20W Smoke Detector - Cerberus Series-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/siemens-531731ex-smoke-detector)
> Updated: 2026-09-19