About Us

DEARTO-Your Partner for Professional Temperature and Humidity Calibration Solutions

Tai'an Detu Automation Instrument Co., Ltd. is a high-tech enterprise based in Tai'an High-Tech Zone, Shandong, China. We specialize in the R&D, manufacturing, and sales of temperature and humidity calibration equipment. Committed to independent innovation, DEARTO is a recognized pioneer in intelligent calibration systems and has been honored with numerous industry distinctions, including: High-Tech Enterprise certification, membership in the National Temperature Measurement Committee, council membership of the Shandong Metrology & Testing Association,and recognition as a “Specialized and Innovative SME” and a “Gazelle Enterprise” in Tai’an.

DEARTO holds multiple invention, utility model, and design patents, along with software copyrights. We have participated in drafting industry standards and operate R&D centers in Tai'an and Chengdu, China. Our product portfolio includes: Temperature Automatic Calibration Systems, Humidity Metrology Instruments, Surface Probe Temperature Calibrators, Blackbody Calibrators, Smart Thermometer Readouts, On-site Metrology Instruments, and Temperature and Humidity Data Acquisition Loggers.

With a customer-oriented mindset, we offer customizable solutions tailored to diverse industry needs. Our instruments are widely used by national and regional metrology institutes, research institutions, and key players in sectors such as power, petrochemical, pharmaceutical, and semiconductors, among others. Our reputation is built on precise performance, smart functionality, and thoughtful design—all supported by a robust quality assurance system and professional technical support.

DEARTO products are trusted by satisfied customers worldwide, including the U.S., Canada, Germany, France, Italy, Australia, Singapore, Brazil, and many other countries across Asia, Europe, and the Americas. 

With extensive experience and a proven track record in temperature and humidity metrology, DEARTO provides reliable, long-term support to global partners. We remain committed to our core belief in “DEARTO Instrument · Quality Model”, delivering innovative and outstanding solutions.

DEARTO Spirit

Independent Innovation 

Rigorous Focus 

Efficient Collaboration 

Integrity & Accountability

Our Philosophy

Innovation Defines the Future, 

Precision Measures the World. 

In Data We Trust, Every Measurement Counts.