Best for

High-noise dry-contact systems

A good choice if you need
  • External signal or relay trigger
  • Adjustable sound: 0–130dB
  • Multiple alarm tones
  • Custom alarm audio upload
How it works
  1. An external switch, relay or signal changes state
  2. The alarm receives the trigger
  3. The configured warning activates
YASONG Alarm
Dry Contact

YASONG SLA-05BK 130dB Dry Contact Trigger Alarm Siren, 45W, 12 Tones, IP65, USB Upload, LED Strobe

0–130dB 45W IP65 Waterproof and Dustproof Audible + visual warning
Best for

High-noise dry-contact systems

A good choice if you need
  • External signal or relay trigger
  • Adjustable sound: 0–130dB
  • Multiple alarm tones
  • Custom alarm audio upload
How it works
  1. An external switch, relay or signal changes state
  2. The alarm receives the trigger
  3. The configured warning activates
$123.00
Volutage
Product Size
Shipping Estimate
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Before You Buy

Please confirm the correct voltage and dry contact wiring method before ordering. This alarm requires wiring and is designed to work with voltage-free switch signals from external devices.

Need another control method? See other alarm options →

Is this model right for you?

Check the capabilities that matter before you choose a configuration.

If you need This model
Dry-contact / signal input ✓
Adjustable volume ✓
Multiple selectable tones ✓
Custom alarm audio ✓
Audible + visual warning ✓
IP65 Waterproof and Dustproof protection ✓

Why choose this model?

The features that most directly affect how this model works and where it fits.

Dry Contact Trigger

The SLA-05BK is triggered by voltage-free switch signals from external devices. It can link with sensors, motion detectors, access control systems, relays and control panels.

Adjustable 130dB Sound

The alarm supports 0–130dB volume adjustment by short-pressing the button. This helps match the warning sound to different indoor or outdoor noise levels.

12 Tones and USB Upload

The siren includes 12 built-in tones that can be adjusted by long-pressing the button. The USB port allows users to upload custom alarm audio.

Key Specifications

Quick technical checks before ordering.

Sound Level
0–130dB
Power
45W
Trigger Mode
Dry contact trigger / voltage-free switch signal trigger
Control Mode
Button control for volume and tone adjustment
Alarm Mode
Audible and visual alarm
Tone
12 tones
Volume Adjustment
0–130dB, short-press button to adjust
Protection Rating
IP65 Waterproof and Dustproof
Installation Method
Wall-mounted installation
Input Voltage
DC12V / DC24V / AC110V / AC220V

Product Overview

The YASONG SLA-05BK dry contact trigger alarm siren combines a 0–130dB adjustable horn, 45W alarm power and LED strobe warning light for sensors, motion detectors, entry access control systems, relays, control panels and outdoor industrial security areas.

This model works by dry contact signal activation: when an external device sends a voltage-free switch signal, the siren triggers both sound and light warning. It supports multiple voltage options and requires wiring before use.

  • Dry contact trigger input for sensor, relay and control panel linkage
  • 0–130dB adjustable sound for different site noise levels
  • 12 built-in tones adjustable by long-pressing the button
  • USB sound upload for custom alarm audio
  • IP65 waterproof and dustproof housing for outdoor use

Please confirm the correct voltage and dry contact wiring method before ordering. Wiring is required, and the alarm does not come with a plug.

Full Technical SpecificationsDetailed product data from the available product information.
Product Type
Dry Contact Trigger Alarm Siren
Input Voltage
DC12V / DC24V / AC110V / AC220V
Power
45W
Sound Level
0–130dB
Tone
12 tones
Volume Adjustment
0–130dB, short-press button to adjust
Alarm Mode
Audible and visual alarm
Trigger Mode
Dry contact trigger / voltage-free switch signal trigger
Control Mode
Button control for volume and tone adjustment
Work Mode
Standby after power-on; triggers sound and light alarm after receiving dry contact signal
Light Source
LED light bead
Lighting Mode
LED Strobe
Protection Rating
IP65 Waterproof and Dustproof
Installation Method
Wall-mounted installation
Operating Temperature
-40℃-70℃
Material
Cold rolled steel and PS
Net Weight
4.5kg
Package Dimensions
50cm*29cm*28cm(1pcs)
50cm*48cm*51cm(4pcs)
USB Interface
Upload custom audio
Application Scenarios
Sensors, motion detectors, entry access control systems, relays, control panels, factories, outdoor security areas, industrial warning systems
Customization
USB custom audio upload, voltage options

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