The following selection highlights reliable data loggers designed to monitor high voltage and related electrical conditions. Each option offers distinct strengths—from dual-channel recording and high-capacity memory to real-time monitoring and alarm features—helping technicians, engineers, and safety-focused users capture essential data over time. Below, discover five top choices with key features, ideal use cases, and practical considerations to match your project needs.
| Product | Brand | Key Features |
|---|---|---|
| Triplett ACDL200 Dual Input True RMS | Triplett | Dual input, TRMS voltage/current, 256k/memory (single), 131k (dual); 1 s–24 h sampling; 0.5″ jaw |
| Supco LCV LOGiT Current & Voltage Data Logger | Supco | External probes, alarms for current/voltage, single/three-phase applications |
| DATAQ DI-2008 Data Logger | Dataq Instruments | 8 isolated analog inputs, ExcelLink included, 16-bit, 200 Hz |
| Triplett ACDL100 True RMS | Triplett | Single-channel TRMS, 600 V/200 A, 1 s–24 h, 100k+ readings |
| Supco True RMS Current & Voltage Data Logger | Supco | Real-time display, logging, alarms for over/under conditions |
When selecting a high voltage data logger, consider sensor compatibility, input channel count, memory capacity, sampling rate options, and alerting capabilities. The following product sections present concise overviews to help you compare at a glance and determine which model aligns with your measurement goals and environment.
Triplett ACDL200 Dual Input Datalogger
The Triplett ACDL200 supports dual-channel data collection for TRMS voltage and current, with flexible sampling from 1 second to 24 hours. It can log up to 256,000 measurements on a single input and 131,000 measurements on dual input. The device records voltage and current with true RMS accuracy, and features a 0.5-inch jaw, making it suitable for inline monitoring of conductors and cables in electrical panels or automation cabinets. The device’s max/min recalls help identify peak conditions during a test window, supporting diagnostic workflows and trend analysis.
Supco LCV LOGiT Current And Voltage Data Logger
The Supco LCV LOGiT provides external current probes and voltage measurements with alarms for over/under conditions. It supports simultaneous single-phase monitoring and can verify power conditions, including running cycles for compressors and fans. A notable strength is its compatibility with three-loggers for multi-phase applications, making it a practical choice for HVAC systems, commercial electrical panels, and test benches where phase relationships matter. Users can visually track status and rely on alarms to catch abnormal events quickly.
DATAQ DI-2008 Data Logger
The DATAQ DI-2008 offers eight differential, high common-mode isolated analog inputs with 16-bit resolution and up to 200 Hz sampling. It includes WinDaq ExcelLink for real-time data streaming to Excel, which supports quick data analysis and reporting. Seven bi-directional digital ports enable rate and counter inputs for synchronized measurements, making it suitable for process monitoring, laboratory experiments, and multi-parameter logging where time-stamped data is essential for correlation studies.
Triplett VDL48 DC Voltage USB Datalogger
The Triplett VDL48 records single-channel DC voltage up to 48 V with a built-in 2000-count LCD display for clear local readings. It supports logging up to 31,320 voltage readings with a selectable sampling rate from 1 second to 24 hours. This model is well-suited for DC systems, battery banks, and embedded projects where a compact, wired data log provides straightforward trending and verification of voltage stability over time.
Triplett ACDL100 True RMS AC Data Logger
The Triplett ACDL100 focuses on single-channel measurements with true RMS AC voltage up to 600 V and current up to 200 A. It offers a 1 second to 24 hour sampling window and a 0.5″ jaw for non-intrusive attachment around conductors. Min/Max recalls help quantify peak values, aiding troubleshooting in electrical installations, service panels, and motor circuits where voltage and current fluctuations matter for performance and safety assessments.
Supco True RMS Current And Voltage Data Logger
This Supco model provides simultaneous real-time display and logging of current and voltage. Its graphical interface shows watts, memory usage, and remaining capacity, while alarms indicate over- and under-range conditions. The combination of live readouts and logged history supports quick verification of system performance, energy auditing, and post-event analysis in commercial HVAC, electrical installations, and industrial automation settings.
Buying Guide: Key Purchase Considerations
Choosing the right high voltage data logger involves balancing measurement needs with practical constraints. Consider the following factors to guide a clear decision:
- Channel and input type: Determine whether you need single-channel or multi-channel logging, and whether you require voltage, current, or differential measurements with isolation.
- Voltage/current ranges: Ensure the device can safely measure the expected levels in your system and that clamps or probes are compatible with your conductors.
- Memory and sampling: Higher memory and flexible sampling rates support longer test windows and finer trend analysis; confirm whether you need burst logging or continuous monitoring.
- Alarms and alerts: Visual LEDs or audible alarms help catch anomalies promptly, reducing downtime and enabling proactive maintenance.
- Data access and compatibility: Look for software with real-time streaming or Excel integration for easy data processing and reporting; ensure file formats fit your workflow.
- Portability and form factor: Consider whether a compact bench unit, a USB data logger, or a heavy-duty panel-mount logger best fits your workspace and safety requirements.
- Safety and approvals: For high-voltage environments, verify safety features such as CAT ratings, isolation, and compliance with applicable standards.
From a cost-to-value perspective, models offering external probes, multi-parameter logging, and robust alarm systems provide the most versatility for HVAC, electrical distribution, and industrial tests. For quick checks or DC circuit logging, compact loggers with clear displays can reduce setup time and simplify onsite verification. When long-term monitoring is essential, select devices with ample memory and reliable software support to ensure data integrity and accessibility.