SKU: 25320401678

SFAR-1M-4DO

Sale price$126.00 Regular price$140.00
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Description

SFAR-1M-4DOAbout the product SFAR 1M 4DO has 4x DO (Digital Outputs). Digital Outputs are PNP transistor output with maximum load 250 mA,55 V DC. All outputs are separated from power supply and RS485 block with use of optical isolators. Built in RS485 interface allows to easy connection over Modbus RTU ASCII protocol with a PLC makes the modules an external I O. The use of 32 bit ARM core processor provides fast processing and communication with the baud rate

About the product

SFAR-1M-4DO has 4x DO (Digital Outputs). Digital Outputs are PNP transistor output with maximum load 250 mA,55 V DC. All outputs are separated from power supply and RS485 block with use of optical isolators.
Built-in RS485 interface allows to easy connection over Modbus RTU/ASCII protocol with a PLC makes the modules an external I/O. The use of 32-bit ARM core processor provides fast processing and communication with the baud rate from 2400 to 115200 bps. The module is equipped with a set of LEDs used to indicate the status of outputs, power supply and RS485 communication. This feature is useful for diagnostic purposes and helping to find errors.
Built-in mini USB allows for initial configuration of the unit without power supply.

Key Features
• 4x opto-isolated Digital Output
• Every DO is protected against inductive load by
built-in diode
• Watchdog function
• Built-in LEDs for device status indication
• Modbus RTU/ASCII communication
• Baud rate: 2400 bps to 115200 bps
• Up to 128 modules on the bus
• Built-in mini USB type B port for configuration
• Space-saving housing, DIN rail mount

Specification
Digital Outputs (DO)
• Transistor output (PNP) max. 250 mA, 55 V DC Platform
• ARM Cortex-M3 Communication
• Interface RS485 half-duplex
• Up to 128 devices on the bus
• Protocol: Modbus RTU/ASCII
• Baud rate: 2400 to 115200 bps
• Interface mini USB type B

Power supply

• 10-36 V DC ± 20%

Housing

• Dimension WxHxD: 17x90x56 mm
• Construction: UL approved, self-extinguishing plastic (PC/ABS)
• DIN rail mounting DIN (DIN EN 50022 norm)
• Cooling: internal air circulation

Environment

• Operating temperature: -10°C to 50°C
• Storage temperature: -40°C to 85°C
• Relative humidity: 5% to 95%, no condensation
• Ingress Protection Rating: IP40 – for indoor installation

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25320401678

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ron shaffer
Bozeman, US
★★★★★ 5
Great value
Color: Natural Wood, Size: 8.5inch(2PCS)
Excellent, solid built shelves. Comes with every type of fastener you could possibly need to install. Even comes with a small level. Very impressed with it all and highly recommend.
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Reviewed in the United States on March 24, 2026
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D.O.
Grantham, US
★★★★★ 4
Nice shelf, install a bit problematic
Color: Dark Walnut, Size: 8.5inch(2PCS)
Nice little shelf, looks great, feels stable enough for my small accent lamp. Two issues: 1. The cutout in the corner is perfect for a cord >>>BUT<<< the plug itself CANNOT fit though that hole. You have to feed the cord through BEFORE INSTALL. So once it’s in, it’s IN. 2. Install seems pretty straight forward but it was not so easy! The rails are too thick for a pencil to go through the screw hole to mark placement. I had to physically hold everything in place and leveled WHILE I drilled. Rather annoying.
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Reviewed in the United States on January 12, 2026
A
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Amazon Customer
Draper, US
★★★★★ 5
Great item!
Color: Natural Wood, Size: 8.5inch(2PCS)
These shelves were great! I put them in the bathroom and helped with added space for holding candle and items to help keep counter clear.
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Reviewed in the United States on April 9, 2026
S
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sgtfergsgirl
Birmingham, US
★★★★★ 5
Good quality
Color: Dark Walnut, Size: 11.2inch(2PCS)
These were the perfect fit, and they came with all the necessary hardware. We like them so much that we bought a different size for another room in our house, and they were perfect as well. They are a very nice quality wood. It's not that cheap stuff that will fall apart.
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Reviewed in the United States on November 19, 2025
S
Verified Purchase
Stewart R James
Charlottesville, US
★★★★★ 5
Corner Shelves
Color: Natural Wood, Size: 11.2inch(2PCS)
Great quality, looks very good and easy installation. Vendor shipped promptly and packaged well.
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Reviewed in the United States on October 22, 2025

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