IET Labs

IET Labs

IET Labs is a US-based manufacturer specializing in precision passive component standards and electrical measurement instruments. The company is best known for its decade boxes — programmable precision resistors, capacitors, and inductors used as laboratory substitution standards in calibration, circuit design, and R&D. IET Labs also produces megohmmeters for high-resistance and insulation resistance measurement, along with milliohmmeter instruments for low-resistance applications.

Their decade resistor and capacitor boxes span a wide range of values and tolerance grades, making them essential tools for metrology laboratories, standards facilities, and electronics development. The megohmmeter product line supports insulation testing critical in quality control and preventive maintenance of electrical equipment and cables.

Key Product Lines

• Decade Resistors: programmable precision substitution resistors for calibration and circuit development
• Decade Capacitors: variable capacitance standards for circuit testing and calibration
• Megohmmeters: high-voltage insulation resistance testers for cable and equipment testing
• Milliohmmeter & Microohmmeter Instruments: low-resistance measurement for contact and winding testing
• Electrical Calibrators: precision standards for voltage, current, and impedance calibration

Industries Served

IET Labs instruments are used in electronics manufacturing, metrology and calibration laboratories, educational institutions, aerospace & defense, and R&D facilities requiring precision passive component standards. Their decade boxes are a staple in any lab performing component substitution, filter design, or impedance bridge calibration.