Calibrate Voltage and pH Instruments with a PIE Voltage calibrator. Learn more →

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Voltage Calibrators

PIE has a voltage calibrator to fit your needs from the PIE 235 voltage and pH simulator to the advanced troubleshooting capabilities of the PIE 532 milliamp and voltage calibrator. The PIE 532 includes our patented Loop Diagnostic Technology! All the voltage/milliamp calibrators have fuse-less protection, rugged design and long battery life. With the PIE 535, source 4 to 20 milliamps or 10 to 50 milliamps into loop instruments and drive final control elements such as valves and actuators with up to 42 volts.

Need to replace an Altek Voltage Calibrator?

Altek was the world leader in voltage calibrators but has discontinued manufacturing all products. PIE voltage calibrators, designed by the same engineer as the Altek models,  are the ideal replacement!  With even smaller size, similar functions, updated designs and value added features including patented current leak detection(milliamp models), rubber boots and backlit displays