Thermocouple simulators and resistance temperature detector (RTD) simulators provide precise standard values of resistance or voltage for simulation and calibration

Calibration instruments use electrical signals or physical quantities to calibrate sensors and meters.

Resistance standards and decade boxes provide a highly accurate standard value of resistance for calibration and testing.

Instrument calibration services test equipment and calibrate them to various standards.

Decade boxes and dividers provide highly accurate and digitally variable standard values of resistance, capacitance, inductance, voltage and/or current for calibration, comparison and testing.

Voltage dividers and voltage references provide highly-accurate reference voltages for calibration and testing purposes.

Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component.