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Proven Performance in the Real World. Precision Data, Actionable Insights.

What Sets ACR Apart?

decades of trusted experience

For nearly 40 years, ACR has earned the trust of industries from aerospace and defense to pharmaceuticals and research—shipping over 1 million data loggers along the way.

Data That Outlasts the Job

ACR loggers are built for the long haul — with battery life of up to 10 years across many models. And for long-duration or high-frequency logging, our SRX series stores over 1 million readings, so you won’t run out of space when it counts.

Precision Where It Matters

ACR loggers combine 16-bit resolution and traceable calibration with clear setup guidance — delivering reliable, actionable data from cryogenic shipping to industrial ovens.

More Than Just Hardware

From logging to insight—ACR provides complete solutions. Our powerful software transforms raw data into clear graphs, reports, and decisions. It’s not just about devices—it’s about clarity.

Global Partner Network

Behind every ACR product is a team that’s ready to help. With free phone and email support, and a global network of partners, we work alongside you to solve real-world challenges.

Over 25 Years of ISO-Certified Quality

ACR has maintained accredited ISO 9001 certification for more than 25 years, ensuring consistent quality and commitment to continuous improvement.

Product Spotlight


AC Current Logging for Electrical Load Studies

Quick, simple deployment. Reliable long-term logging.

The SRX3 AC Current Data Logger captures electrical load profiles, helping engineers and energy managers understand load patterns, identify demand levels, verify available panel or circuit capacity, and confirm energy savings from efficiency upgrades. Its compact, self-powered design — including split-core current probes — allows quick installation with no voltage connections, external power, or system downtime required.

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