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Multi Circuit DC Monitor (Solar Current Monitor)


DISCONTINUED. Obvius’ Solar PV String Monitor allows owners and integrators of PV systems to monitor the performance of each string or sub array of Solar PV systems. Obvius puts the “smart” in combiner boxes.

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Solar PV String Monitor A89DC-08B

Obvius’ Solar PV string monitor allows owners and integrators of PV systems to monitor the performance of each string or sub array by providing high accuracy direct current readings. The A89DC-08B can monitor eight strings using non-contact Hall Effect sensors and provides a Modbus RS-485 output. When used with the Obvius AcquiSuite, users can set alarms and receive notifications when strings deviate from their expected value. The A89DC-08B is a cost-effective way to monitor key performance parameters, quickly identify system issues and reduce time on site.


The solar PV string monitor is compatible with virtually any Modbus master, allowing customers the flexibility to use the A89DC-08B in existing Modbus networks. Use with the Obvius AcquiSuite and take advantage of plug-and-play communication or use with the Obvius ModHopper for wireless communication. Ask about the Obvius Commissioning Console, a free commissioning software.


  • DC current monitoring
  • Operations and Maintenance tool
  • String monitoring for photovoltaic (PV) systems
  • Monitor key panel performance and production parameters
  • Quickly identify panel issues
  • Alarm notification to key personnel
  • DC module for OEM smart combiner box manufacturers

Features and Benefits
  • Designed specifically for DC monitoring of Photovoltaic (PV) systems
  • Easily add to any Modbus RTU network
  • Alarming for troubleshooting field issues
  • Ability to daisy chain up to 32 devices (expandable)
  • UL Recognized
  • High accuracy +/- 1%
  • LEDs for visual verification / status
  • Field upgradable firmware
  • Available OEM partners offering UL 1741 “smart” combiners
  • Available in a 6 string configuration