Best for

IP54 Modbus warning systems

A good choice if you need
  • PLC / RS485 control
  • Adjustable sound: 0-120 dB
  • Custom alarm audio upload
  • Audible + visual warning
How it works
  1. PLC or controller sends a command
  2. The alarm receives the RS485 / Modbus signal
  3. The configured warning activates
YASONG Alarm
RS-485 Control

YASONG SLA-B02X 120dB RS-485 Modbus Alarm Siren, 25W, 12 Tones, IP54, USB Upload, LED Strobe

0-120 dB 25W IP54
Best for

IP54 Modbus warning systems

A good choice if you need
  • PLC / RS485 control
  • Adjustable sound: 0-120 dB
  • Custom alarm audio upload
  • Audible + visual warning
How it works
  1. PLC or controller sends a command
  2. The alarm receives the RS485 / Modbus signal
  3. The configured warning activates
$113.00
Voltage

Choose the voltage that matches your available power supply.

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Before You Buy

Please confirm the correct voltage before ordering. This alarm requires RS-485 Modbus-RTU control software development capability and wiring before use.

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
PLC / RS485 control ✓
Adjustable volume ✓
Custom alarm audio ✓
Audible + visual warning ✓
IP54 protection ✓

Why choose this model?

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

RS-485 Modbus Control

The SLA-B02X is activated by commands sent through the RS-485 Modbus-RTU protocol. It is suitable for users who can develop or configure control software for networked alarm triggering.

Standby After Power-On

After power is connected, the alarm remains in standby mode. It activates sound and LED strobe warning after receiving a valid RS-485 communication command.

Adjustable 120dB Sound

The alarm supports 0–120dB volume adjustment. Volume and tone can be adjusted by remote control or by sending commands through RS-485 control software.

Key Specifications

Quick technical checks before ordering.

Sound Level
0-120 dB
Power
25W
Trigger Mode
RS-485 Modbus-RTU protocol command trigger
Control Mode
Remote control and RS-485 Modbus-RTU command control
Alarm Mode
Sound and light alarm simultaneously
Tone
12 adjustable tones
Volume Adjustment
0–120dB, adjustable by remote control or RS-485 command
Protection Rating
IP54
Installation Method
Wall mounting & Bottom mounting
Input Voltage
DC12V / DC24V / AC110V / AC220V

Product Overview

The YASONG SLA-B02X RS-485 Modbus alarm siren combines a 0–120dB adjustable horn, RS-485 Modbus-RTU protocol control and LED strobe warning light for factories, warehouses, corporate buildings, residential communities, retail stores and industrial warning systems.

This model works by RS-485 command activation: after power is connected, the alarm remains in standby mode and can be triggered by control software sending commands through the RS-485 communication protocol.

  • RS-485 Modbus-RTU control with default 9600 baud rate
  • 0–120dB adjustable sound by remote control or software command
  • 12 adjustable tones for different warning scenarios
  • USB sound upload for custom alarm audio
  • LED strobe warning light for visible alarm indication

Please confirm the correct voltage and RS-485 control requirements before ordering. This alarm requires wiring and control software development capability before use.

Full Technical SpecificationsDetailed product data from the available product information.
Product Type
RS-485 Networked Alarm Siren
Input Voltage
DC12V / DC24V / AC110V / AC220V
Power
25W
Sound Level
0-120 dB
Tone
12 adjustable tones
Volume Adjustment
0–120dB, adjustable by remote control or RS-485 command
Alarm Mode
Sound and light alarm simultaneously
Trigger Mode
RS-485 Modbus-RTU protocol command trigger
Control Mode
Remote control and RS-485 Modbus-RTU command control
Work Mode
Standby after power-on; triggered by RS-485 command to activate sound and LED strobe
Light Source
LED
Lighting Mode
LED Strobe
Protection Rating
IP54
Installation Method
Wall mounting & Bottom mounting
Operating Temperature
-40℃ to 70℃
Material
Cold rolled steel
Net Weight
3.8kg
Package Dimensions
49cm*33cm*25cm(1pcs)
USB Interface
Upload custom audio
Application Scenarios
Factories, warehouses, corporate buildings, residential communities, retail stores, tornado warning systems, noisy industrial sites, networked warning systems
Customization
USB custom audio upload, voltage options

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