Extech DL150 True RMS AC Voltage/Current Datalogger

The DL150 brings professional-level data logging into a compact, field-ready unit. Designed for AC systems, it allows you to measure either voltage (up to 600 V) or current (up to 200 A) on one channel with true RMS accuracy—making it suitable even for distorted waveforms common in modern installations. The logger’s memory can accommodate up to 100,000 readings, and you select your sample interval from as fast as 1 second to as slow as every 24 hours, tailoring it to short-term capture or long-term trend monitoring. Its LCD display shows the current reading, timestamp, Min/Max values and alarm-status (for high/low triggers you define). Recording modes include Normal (continuous log), Peak (captures spikes) and Capture (starts when a preset trigger is exceeded). After logging, you connect the unit to your PC via USB, download the readings, and export them for spreadsheet analysis. The package includes the logger itself, a current clamp, voltage leads/alligator clips, the USB cable and software—so it’s ready for immediate deployment. Built with durable housing, auto power-off to conserve battery, and safety rating to CAT III-600 V, it fits in industrial electrical maintenance or energy-audit scenarios with ease.

Features

• True RMS measurement of AC voltage (10 – 600 V) or AC current (10 – 200 A) for accurate readings even in non-sinusoidal waveforms.

• Single-channel logging with memory for up to 100,000 data points—ideal for long-duration monitoring.

• User-programmable sampling interval from 1 second up to 24 hours to adapt for rapid events or extended logging campaigns.

• Multiple recording modes: Normal (continuous logging), Peak (captures highest/lowest), and Capture (starts when measurement crosses a defined threshold).

• On-board LCD display showing time/date, current value, Min/Max, and alarm status for quick field checks.

• High/low user-settable alarm thresholds to trigger logging or flag out-of-range events automatically.

• USB interface with PC-software support for downloading logged data and exporting to spreadsheets for further analysis.

• Auto power-off and low battery indication to preserve battery life during unattended logging.

• Safety-rated for CAT III-600 V environments—suitable for many industrial electrical settings.

• Compact form-factor (114 × 63 × 34 mm, approx 248 g) with included clamp, leads and software—ready to go out of the box.

Includes

• Current clamp
• Test leads
• alligator clips
• Software
• USB cable
• 110-Volt AC Adapter
• 4 AAA batteries