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SDC 400U-SN 400-SN Series Single Gang Siren Alarm Station, Siren 85 db, 12/24VDC, Stainless Steel

SDC SDC Alarm Station, 1-Gang, SS, Siren 85 db, 12/24VDC
Product images for SDC 400U-SN 400-SN Series Single Gang Siren Alarm Station, Siren 85 db, 12/24VDC, Stainless Steel. 1 image(s) available. Click on image to view full size.

Key Features

  • High-impact audible alerts: 85 dB siren quickly notifies staff and deters unauthorized access
  • Robust stainless-steel construction for vandal-resistant, long-lasting door alarm performance
  • Dual-voltage compatibility (12/24V DC) for easy integration with access control and alarm panels
  • Slim single-gang or narrow-frame mounting for fast retrofit on doors and frames without major modification
  • US-made reliability with a 5-year limited warranty for reduced downtime and lower total cost of ownership

Quick Specifications

Product Model
400U-SN
Brand Name
Security Door Controls
Product Name
400U-SN Siren
Product Type
Siren
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Product information

400U-SN

Overview

Keep entry points monitored and secure with the Security Door Controls SDC 400U-SN single-gang siren alarm station. Designed for door alarms and access-control systems, this compact siren delivers a clear 85 dB audible alert to quickly draw attention during forced-entry or door-unlocked events. The vandal-resistant stainless-steel faceplate provides industrial-grade durability for high-traffic or exposed locations, while the slim single-gang or narrow-frame mount simplifies installation on door frames and gang boxes. Dual-voltage support (12/24V DC) ensures compatibility with most security and surveillance control panels, making it easy to integrate into existing monitoring and alarm systems. Wired connectivity delivers reliable performance without wireless interference, and a 5-year limited warranty backs long-term operation and reduced maintenance costs. Ideal for commercial, institutional, and retail environments that require dependable audible notification and door monitoring, the SDC 400U-SN enhances situational awareness and response times. Add this Security Door Controls siren to your access control or surveillance project to strengthen perimeter security and improve alarm visibility.

Features

  • High-impact audible alerts: 85 dB siren quickly notifies staff and deters unauthorized access
  • Robust stainless-steel construction for vandal-resistant, long-lasting door alarm performance
  • Dual-voltage compatibility (12/24V DC) for easy integration with access control and alarm panels
  • Slim single-gang or narrow-frame mounting for fast retrofit on doors and frames without major modification
  • US-made reliability with a 5-year limited warranty for reduced downtime and lower total cost of ownership
20 of 20 specifications
Technical specifications for SDC 400U-SN 400-SN Series Single Gang Siren Alarm Station, Siren 85 db, 12/24VDC, Stainless Steel
General Information
Brand Name Security Door Controls
Manufacturer Security Door Controls
Product Name 400U-SN Siren
Product Type Siren
Product Model 400U-SN
Product Series 400
Application/Usage Door
Country of Origin US
Manufacturer Part Number 400USN
Technical Information
Alarm Type Audible
Connectivity Technology Wired
Environmental Conditions
Sound Emission 85.0dB
Physical Characteristics
Color Silver
Width 2.80"
Weight 1.00lb
Durability Vandal Resistant
Power Description
Power Source DC Power
Input Voltage 12V DC, 24V DC
Product Information
Mount Type Gang Box Mount, Wall Mount
Warranty
Limited Warranty 5-Year

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SKU:
400U-SN
Manufacturer part:
400U-SN
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Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.

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SDC 400U-SN 400-SN Series Single Gang Siren Alarm Station, Siren 85 db, 12/24VDC, Stainless Steel

400U-SN

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