Pie PIE 422PLUS Diagnostic Thermocouple and Milliamp Calibrator with Patented LeakDetect. Comes with rubber boot, hands free carrying case, test leads and NIST cert.

Welcome to PIE Catalog

Practical Instruments consists of a world-class team headed by the former Director of Engineering of Altek© and Transmation Products Group, Ron Clarridge. The combined experience and knowledge within the industry of the team enable us to produce practical instruments of exceptional quality. Our products are "Practical" and "EZ-as-PIE" for the end user in the field. We are focused on manufacturing accurate, durable and precise calibration equipment which is easy to use.