Developed By
SlightGen Solutions
Product Description
The 20-Channel Voltage Data Logger is a high-precision industrial-grade data acquisition system designed primarily for battery manufacturing plants, testing laboratories, and industrial R&D environments. It is an advanced upgrade to the earlier model. Check more about the earlier model here.
This enhanced version introduces:
- Improved measurement accuracy (up to ±10 mV, comparable to premium instruments like Fluke multimeters).
- Robust software integration for real-time monitoring and centralized data management.
- Smarter data handling with auto-upload, offline storage, and auto-calibration features.
- Fast Measurment High speed measurement of all 20 channels.
With its combination of industrial durability and laboratory-grade accuracy, this logger is the perfect tool for applications where reliable, multi-channel voltage monitoring is critical.
Product Architecture

The system is built with:
- 20 isolated voltage measurement channels for independent monitoring.
- Ethernet / Wi-Fi connectivity for centralized data management.
- Onboard SD storage for offline logging and data redundancy.
- SQL server integration for enterprise-scale data collection and analysis.
Working Principle
The data logger continuously (or based on external triggers) measures voltages across 20 independent channels and transmits the results to a central SQL server over Ethernet or Wi-Fi.
If server connectivity is lost, the system automatically switches to onboard SD card logging, ensuring no data is lost. Once the connection is re-established, all stored logs are uploaded to the central database.
A dedicated Windows-based software application enables operators to:
- Monitor real-time voltages across all 20 channels.
- Configure logging parameters such as interval, triggers, and alarm thresholds.
- Review historical data for batch analysis.
- Export logs and generate reports for quality assurance and compliance.
This Utility is customizable as per customer need.
Built-in Protection & Accuracy Enhancements
- Overvoltage and reverse polarity protection ensures robust operation in industrial setups.
- Short-circuit and overcurrent protection safeguard against electrical faults.
- Auto-calibration functionality maintains accuracy over long-term operation, eliminating the need for frequent manual recalibration.
- Achieves ±10 mV tolerance (±0.2% accuracy) — comparable to industry-standard multimeters like Fluke, but in a multi-channel, automated logging format.
Product Specifications
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Channels: 20 independent voltage measurement channels
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Voltage Range: 0V – 20V DC (customizable up to 30V)
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Accuracy: ±0.2%
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Tolerance: ±10 mV
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Minimum Scan Time: 2 seconds (scan all 20 channels)
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Trigger Inputs: 2 digital trigger channels
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Auto Calibration: Supported
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Offline Storage: Onboard SD card
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Input Supply Voltage: 12–24V DC
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Status Indications: Power, Server Connection, Logging, Alerts
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Timekeeping: Onboard RTC with NTP synchronization
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Protections: Overvoltage, reverse polarity, short-circuit, overcurrent
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Connectivity: Ethernet / Wi-Fi
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Protocol: MQTT (lightweight, fast IoT protocol) for real-time, low-latency data transfer
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Software Features (Windows-based):
- Real-time voltage display
- Historical data visualization
- Data export and report generation