Siemens FDO221 Optical Smoke Detector | Technical Specification & Installation Guide

Manufacturer: Siemens (Sinteso Series) | Model / Part Number: FDO221

Device Type: Optical Smoke Detector / Fire Alarm Sensor

Status: 100% Original, Brand New & Factory Sealed | Available for Global Shipping

Related Reference: For alternative models, please refer to the Siemens OP121 Guide or Siemens FDT181C Heat Detector Guide .

1. General Description & Product Overview

The Siemens FDO221 Optical Smoke Detector is part of the Siemens Sinteso FDO221 fire detection range. Engineered as a high-performance smoke detector, its advanced design detects smoke from both flaming and smoldering fires at the earliest stage.

Utilizing state-of-the-art optical sensing technology, the FDO221 identifies smoke particles quickly and accurately to provide fast and reliable fire warning signals. Designed to resist environmental and interference factors, it works reliably in demanding locations such as industrial plants, commercial offices, and healthcare facilities while minimizing false alarms.

2. Technical Specifications

• Manufacturer / Brand: Siemens (Sinteso Family)

• Model / Part Number: FDO221

• Operating Voltage: DC 12V – 30V

• Current Consumption: Standby ≤ 0.1mA; Alarm ≤ 20mA

• Detection Type: Optical smoke detection (light-scattering principle)

• Alarm Output: LED indicator and local panel alarm annunciation

• Operating Temperature Range: –10°C to +50°C (+14°F to +122°F)

• Relative Humidity: 10% to 95% (non-condensing)

• Mounting Type: Ceiling or wall-mounted (Compatible with Siemens FDB222 base)

• Dimensions: Ø100 mm × H42 mm

• Weight: Approx. 110 grams

3. Key Features & Advantages

• Advanced Optical Detection: Uses a smart light-scattering method to capture smoke early, delivering quick alerts for both flaming and smoldering fires.

• Environmental Resistance: Engineered to resist dust, humidity, and electrical interference, ensuring long-lasting reliability across diverse operating conditions.

• Adjustable Sensitivity: Allows users to adjust sensitivity levels based on environmental factors to reduce false alarms.

• Low Power Consumption: Designed for energy efficiency with minimal power usage in both standby and alarm modes.

• Seamless Compatibility: Works directly with the Siemens FDB222 base to provide a secure and stable mechanical/electrical connection.

4. Industrial & Commercial Applications

The Siemens FDO221 delivers reliable performance and full compliance with fire safety standards across various settings:

• Office buildings and commercial facilities

• Hospitals and medical institutions

• Industrial plants and manufacturing workshops

• Hotels, resorts, and hospitality venues

• Educational institutions and schools

• Storage rooms and data centers

5. Installation, Maintenance & Storage Guidelines

• Installation Location: Install in the center of ceilings or walls, preferably in areas with higher fire risks or where smoke gathers.

• Maintenance Frequency: Conduct monthly functional checks and semi-annual detailed maintenance.

• Cleaning Method: Clean the detector head with a dry, soft cloth. Avoid moisture or harsh cleaning agents to protect sensor accuracy.

• Replacement Cycle: Recommended replacement every 8–10 years for sustained safety compliance.

• Storage Environment: Keep in a cool, dry, and dust-free location away from direct sunlight and extreme temperatures.

6. Certifications & Standards Compliance

• CE Certification: Conforms to rigorous European safety standards.

• RoHS Certification: Compliant with the Restriction of Hazardous Substances directive.

• EN 54 Standard: Meets international standards for fire detection and alarm systems.

• ISO 9001 Certification: Ensures consistent manufacturing quality and reliability.

7. Frequently Asked Questions (FAQ)

• Q: Which detector base is compatible with the Siemens FDO221?

  A: The FDO221 is designed to be installed on the Siemens FDB222 detector base for secure electrical and mechanical connections.

• Q: Does the FDO221 help reduce false alarms in dusty environments?

  A: Yes, it features advanced optical light-scattering technology combined with adjustable sensitivity settings to filter out ambient interference.

• Q: Are your Siemens FDO221 detectors 100% original and brand new?

  A: Yes, we supply genuine, factory-original Siemens fire safety components backed by reliable global shipping.

8. Need a Quote or Bulk Order for Siemens FDO221?

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[Request a Fast Quote Today] or contact our technical sales engineers for professional support and immediate project fulfillment.

For related equipment and master guides, explore our resources: Siemens Fire Safety & Detector Guide .