TEL-TRU

Tel-Tru Manufacturing Company has been a trusted manufacturer of precision temperature measurement instruments since 1916. We design and produce high-quality industrial digital and dial thermometers, RTDs, temperature transmitters, and calibration equipment used across industries in processing applications. Known for our accuracy, durability, and customization capabilities, Tel-Tru products help customers maintain process control, product quality, and regulatory compliance. Our team works closely with distributors and end users to deliver reliable solutions backed by responsive technical support and over a century of manufacturing expertise.