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RS-485 Analog to Digital (4 channel)
ADC4-11RS485 Analog to Digital Converter - 11/12 Bit
ADC4-15RS485 Analog to Digital Converter - 15/16 bit

11, 12, 15 and 16 bit Analog to Digital for connection to RS-485

USB WiFi Ethernet RS-232 RS-485

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ADC4-11RS485 A to D (11 Bit)..$ 55.95 Quantity    

ADC4-15RS485 A to D (15 Bit)..$ 65.95 Quantity    

ACCESSORIES
CO-485USB USB to RS-485 Conv$ 44.95 Quantity    

PS-5VDC-1000 Wall Adapter......$ 12.95 Quantity    



Flash Drive

EN-D Enclosure for the ADC4-RS485

Additional Accessories


  • Connects to RS-485 (distance up to 4,000 feet)
  • 4 channels of 11 bit Analog to Digital (2,048 increments) for single-ended inputs
    or 2 channels of 12 bit differential inputs (4,096 increments) with ADC4-11RS485
  • 4 channels of 15 bit Analog to Digital (32,768 increments) for single-ended inputs
    or 2 channels of 16 bit differential inputs (65,536 increments) with ADC4-15RS485
  • Built-in Instrument Amplifier with selectable high precision reference voltage - allows for
    (0 to 256mv), (0 to 512mv), (0 to 1.024v), (0 to 2.048v), (0 to 4.096v) or (0 to 6.144v*) voltage input ranges which are scaled to provide uniform voltage per increment        *caps at 5v
  • Both 11/12 bit and 15/16 bit versions may be special ordered in 8, 12 or 16 channel converters - contact EECI support for more info
  • Full technical support provided by on staff advisors
  • Commercial Grade reliability - engineered for continuous 24 hour industrial operation utilizing Texas Instrument's world renown advanced analog technology
  • Expandable to monitor up to 8 digital inputs or control up to 8 relays using the EX-8M expansion card or...
  • Expandable to control up to 136 relays, monitor 136 inputs (or combinations of relays and inputs) using EXM-16 or EXM-32 Relay I/O Expansion Modules
  • Expandable to also control Digital to Analog levels or monitor additional Analog to Digital channels - contact EECI support for more info
  • Compatible with Windows XP, Vista, Windows Server, Windows 7, Windows 8.1, Windows 10 and Windows 11
  • No complicated communication protocol - just one line of code is required to read all inputs (or control all relays) to greatly simplify software development. The RS-485 connection and all initialization is completely automated.
  • Use your own program to read, display and process the 4 analog inputs for any application or use the included software*
  • Source code examples included on CD in Microsoft Visual Basic.Net, Visual C#, C++, Python, Microsoft ASP.Net and others
  • LabVIEW compatible, includes LabVIEW VI, graphic software example and DLL library
  • Includes CD with Data Logging Software, driver and user interface. Requires power adapter (PS-5VDC-1000)
    *Smartphone applications can vary, please contact EECI support to check compatibility for your device


ADC4-RS485 Description and Spec

ADC4-11RS485 Tech Reference

ADC4-15RS485 Tech Reference

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Electronic Energy Control, Inc.
14960 Maple Ridge Rd
Milford Center OH 43045-9016

TOLL FREE (24 hour order line)
(800) 842-7714

Technical Support (937) 349-6000
Internet Email cst@eeci.com

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