Uni-T Portable Current Loop Calibrator UT705

Uni-T UT705 current loop calibrator overview

If you’re looking for reliable calibration on-site or in the workshop, the UT705 gives you precise measurement and sourcing of DC voltage and current. It’s built tough, fits easily in your hand, and helps you fine-tune loops with accuracy and speed.

Table of contents

• ✅ What it’s great for
• ✅ What’s included
• ✅ Helpful product specs
• ✅ Read the manual

What it’s great for

This tool is perfect for process control techs, HVAC installers, and anyone who needs to simulate, measure, or supply loop current—whether you’re calibrating a transmitter or troubleshooting on the fly.

• ✅ Measures DC voltage, current, and loop current with up to 0.02% accuracy
• ✅ Sources and simulates 24mA DC output for 4–20mA loop testing
• ✅ Built-in 24V loop power for powering transmitters
• ✅ Step and ramp functions for fast, repeatable linearity testing
• ✅ Saves frequently-used settings so you can jump back in quickly
• ✅ Handy auto-stepping mode saves time during site checks
• ✅ Bright backlight for low-light environments

What’s included

The UT705 comes with everything you need to start calibrating straight out of the box—no fuss, no extra add-ons.

• ✅ UT705 portable current loop calibrator
• ✅ Quality test leads for precise connections
• ✅ Pre-installed battery for out-of-box use
• ✅ Full 12-month warranty for peace of mind

Helpful product specs

Here’s a quick snapshot of the UT705’s technical features and why it’s built for real-world jobs.

• ✅ Measure accuracy: DC voltage (30V): ±(0.02% + 2)
• ✅ Loop current measurement: 24.000mA ±(0.02% + 2)
• ✅ Output & simulate: DC current up to 24.000mA
• ✅ Loop power: 24V with ±10% accuracy
• ✅ Ramp modes: Slow ramp, fast ramp, and 25% step-ramp
• ✅ Power: 9V battery (6F22)
• ✅ Display size: 63mm x 40mm
• ✅ Dimensions: 96mm x 193mm x 47mm
• ✅ Weight: 410g, compact but solid in hand

Read the manual

Want the full lowdown on setup, settings, and specs? Click here to view the UT705 User Manual (PDF).