Altech’s DO-1 for Modbus devices

25/07/2025

Altech Corporation, an industrial automation solutions provider, has released its DO-1 universal monitor for Modbus devices. This solution enables enterprises of all sizes to easily monitor, collect and analyse their equipment and process data without any subscription fees or licences. 

Compact yet powerful, the DO-1 connects to up to 128 Modbus remote terminal unit (RTU)/transmission control protocol (TCP) devices. It supports integration with both new and legacy Modbus networks, taking advantage of the protocol’s widespread use across industries to enable fast, efficient data monitoring without incurring the high costs associated with more complex Industrial Internet of Things (IIoT) systems. By removing the traditional barriers to entry, this solution opens the door to valuable operational insights that were previously inaccessible, particularly for small- and medium-sized companies.

The DO-1 includes web-based software that facilitates configuration and supports the creation of custom dashboards to visualise data. It also supports individual alert or event settings with email notifications, enabling users to receive real-time alerts regarding the status of their monitored systems.

DO-1 monitoring devices offer robust data collection capabilities that allow users to extract filtered data to Excel or CSV files for analysis and reporting. The series is equipped with a real-time clock with 30-day battery backup, ensuring continuous operation.

 

  
  The Altech DO-1 universal monitor for Modbus devices 

 

 

The devices support dual power input and offer 5 GB of internal data storage with the option to expand up to 128 GB using an external SD card. Connectivity options include WiFi, with Bluetooth available as an optional feature.

Key features of the DO-1 include:

  • No subscription fees or licences;
  • Do-it-yourself configuration with no programming knowledge required;
  • Compatible with any Modbus sensor or measuring device, regardless of brand;
  • Tracks temperature, humidity, pressure, vibration, energy usage and more;
  • Local data storage for complete data privacy; and
  • Optional DIN rail adapter for easy installation.

The DO-1 is a versatile solution for many applications, such as energy monitoring in commercial buildings, machine condition monitoring, server room and data centre supervision, liquid level monitoring in tanks and reservoirs and much more.