Calibration and Repair Services (988 companies)
Calibration and repair services for vibration, acoustic, electrical / electronic test, environmental, dimensional, NDT, analytical, process and other specialty instruments, sensors and related equipment.
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Calibration Instruments (485 companies)
Calibration instruments use electrical signals or physical quantities to calibrate sensors and meters. Devices that produce electrical signals can serve as precise meters for sensor calibration, or send output signals to other devices.
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Calibration Standards and Reference Sources (365 companies)
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.
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Capacitance Standards and Decades (17 companies)
Capacitance standards and decades provide a highly accurate standard value of capacitance for calibration and testing.
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Decade Boxes and Dividers (32 companies)
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.
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Gage Blocks (85 companies)
Gage blocks are manufactured to precise gagemaker tolerance grades for calibrating, checking, and setting fixed and comparative gages.
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Gas Generation Equipment (258 companies)
Gas generation equipment provides an onsite supply of gas, vapor, or humidity (water vapor). It eliminates the need for delivery in gas cylinders, which can be bulky and may have special storage requirements.
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Inductance Standards and Decades (10 companies)
Inductance standards and decades provide highly accurate and digitally variable standard values of inductance for calibration, comparison and testing.
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Instrument Calibration Services (613 companies)
Instrument calibration services test equipment and calibrate them to various standards.  
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Laboratory and Calibration Gases (52 companies)
Laboratory and calibration gases are specialized for use as laboratory standards, as well as for detection, sample preparation, environmental monitoring and analysis applications. Learn more about Laboratory and Calibration Gases

Masters and Setting Gages (75 companies)
Masters and setting gages provide dimensional standards for calibrating other gages.
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Meter Provers and Flow Proving Components (18 companies)
Meter provers and flow proving components provide a known traceable volume to simulate actual operating conditions to test and verify the performance of flow meters and transfer meters. Learn more about Meter Provers and Flow Proving Components

Metrology Fixtures and CMM Fixtures (26 companies)
Metrology fixtures and CMM fixtures are used to hold and position parts, probes, or workpieces during dimensional gaging and other measurement operations. Learn more about Metrology Fixtures and CMM Fixtures

Optical Calibration Standards (12 companies)
Optical calibration standards are used to calibrate the optical properties of optical detectors and instruments. Learn more about Optical Calibration Standards

Resistance Standards and Decades (36 companies)
Resistance standards and decade boxes provide a highly accurate standard value of resistance for calibration and testing.
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Thermocouple Simulators and RTD Simulators (34 companies)
Thermocouple simulators and resistance temperature detector (RTD) simulators provide precise standard values of resistance or voltage for simulation and calibration.
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Time and Frequency Standards (20 companies)
Time and frequency standards can include cesium or rubidium atomic clocks, quartz oscillators, hydrogen masers and other master clocks. Time reference sources are used in networks & telecommunications, observatories, utilities and navigation (GPS). Learn more about Time and Frequency Standards

Voltage Dividers and Voltage References (37 companies)
Voltage dividers and voltage references provide highly-accurate reference voltages for calibration and testing purposes.
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