Additel is the leading manufacturer and supplier of documenting process calibrators, multifunction process calibrators and multifunction loop calibrators.

Process Loop Calibrator
ADT209/210
Additel's newest loop calibrators the ADT209 and ADT210 combine ease of use and functionality, making them the ideal tools to troubleshoot your process loop. Read More

Multifunction Loop Calibrator
ADT220
The ADT220 is a highly integrated loop calibrator featuring several patented technologies, the calibrator is an ultra-compact, rugged, and best of all easy to use hand-held device. Read More

Multifunction Temperature Calibrator
ADT221A
The ADT221A is a highly integrated Multifunction Temperature Calibrator featuring several patented technologies, it is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring temperature, and electrical signals. Read More

Multifunction Process Calibrator
ADT222A
The ADT222A by Additel is a highly integrated multifunction calibrator featuring several patented technologies, the ADT222A is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring pressure, temperature, and electrical signals. Read More

Documenting Process Calibrator
ADT223A
The ADT223A by Additel is a highly integrated multifunction calibrator featuring several patented technologies, the ADT223A is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring pressure, temperature, and electrical signals. Read More