RS-485 Protocol Trigger
The SLA-900MX is triggered by RS-485 communication protocol instead of simple power-on or remote control. It supports Modbus-RTU with a default baud rate of 9600.
Best for
Large-site Modbus warning
A good choice if you need
- PLC / RS485 control
- Adjustable sound: 0–130dB adjustable
- Multiple alarm tones
- Custom alarm audio upload
How it works
- PLC or controller sends a command
- The alarm receives the RS485 / Modbus signal
- The configured warning activates
YASONG Alarm
RS-485 Control
YASONG SLA-900MX 130dB RS-485 Modbus Alarm Siren, 150W, 12 Tones, IP65, USB Upload, LED Strobe
0–130dB adjustable
150W
IP65 waterproof and dustproof
Audible + visual warning
Best for
Large-site Modbus warning
A good choice if you need
- PLC / RS485 control
- Adjustable sound: 0–130dB adjustable
- Multiple alarm tones
- Custom alarm audio upload
How it works
- PLC or controller sends a command
- The alarm receives the RS485 / Modbus signal
- The configured warning activates
$359.00
$399.00
Before You Buy
This siren is triggered by RS-485 communication commands. Users need control software development capability and should confirm Modbus-RTU communication settings before purchase.
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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
✓
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.
150W High-Power Warning
The 150W siren is designed for wide-area alarm coverage. In open areas, the sound coverage distance can reach up to about 300m.
130dB Adjustable Sound
The alarm provides 0–130dB adjustable volume. Users can adjust volume and tone by side buttons or through RS-485 control software commands.
Key Specifications
Quick technical checks before ordering.
- Sound Level
- 0–130dB adjustable
- Power
- 150W
- Trigger Mode
- RS-485 communication protocol trigger
- Control Mode
- RS-485 Modbus-RTU control; side buttons for volume and tone adjustment
- Alarm Mode
- Audible and visual alarm siren
- Tone
- 12 tones
- Volume Adjustment
- 0–130dB, adjustable by side buttons or RS-485 command
- Protection Rating
- IP65 waterproof and dustproof
- Installation Method
- Wall mounting
- Input Voltage
- DC12V / DC24V / AC110V / AC220V
Product Overview
The YASONG SLA-900MX RS-485 loud alarm siren combines a 150W high-power horn with a LED strobe warning light for factories, industrial sites, large outdoor areas and emergency warning systems.
This model is triggered by RS-485 communication protocol and supports Modbus-RTU with a default baud rate of 9600. Users can send commands through control software to activate the alarm and adjust volume or tone.
- 150W high-power siren for wide-area warning coverage
- 0–130dB adjustable volume for different environments
- 12 alarm tones for multiple warning needs
- RS-485 Modbus-RTU control for system integration
- USB sound upload for custom alarm audio
This product requires RS-485 control software development capability. Please confirm communication requirements before ordering.
Full Technical SpecificationsDetailed product data from the available product information.
- Product Type
- RS-485 Loud Audible and Visual Alarm Siren
- Input Voltage
- DC12V / DC24V / AC110V / AC220V
- Power
- 150W
- Sound Level
- 0–130dB adjustable
- Tone
- 12 tones
- Volume Adjustment
- 0–130dB, adjustable by side buttons or RS-485 command
- Alarm Mode
- Audible and visual alarm siren
- Trigger Mode
- RS-485 communication protocol trigger
- Control Mode
- RS-485 Modbus-RTU control; side buttons for volume and tone adjustment
- Work Mode
- Power-on standby; RS-485 command activates alarm sound and LED strobe
- Light Source
- LED strobe
- Lighting Mode
- LED strobe
- Protection Rating
- IP65 waterproof and dustproof
- Installation Method
- Wall mounting
- Operating Temperature
- -40℃~70℃
- Material
- Cold rolled steel, ABS and PS
- Net Weight
- 8kg
- Package Dimensions
- 63cm*37cm*37cm (1PCS)
- USB Interface
- Upload custom alarm sounds
- Application Scenarios
- Factories, large industrial sites, emergency alarm systems, tornado warning points, fire warning systems, outdoor security areas, automation systems, control rooms, equipment linkage alarm systems
- Customization
- Custom alarm sounds uploadable via USB
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