IET Labs a World Standard in Metrology
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IET Labs is a US manufacturer of precision test and measurement equipment.

Since 1976, IET Labs has been providing our customers with the world’s best resistance, capacitance and inductance standards all proudly made in the USA

In 2000, IET Labs acquired the GenRad standards, impedance decades, megohmmeters, digibridges, audio and strobe lines and now continues to manufacture, service and support these products “In the Genrad Tradition…”

In 2006, IET Labs acquired the Electro Scientific Industries (esi) resistance lines, thus proudly and successfully, combining the two most important classic impedance companies with our own.

ELECTRICAL METROLOGY


RESISTANCE STANDARD & dECADE bOXES

SRX/SRC SERIES RESISTANCE STANDARD

  • Ranges from 1 mΩ to 10TΩ
  • Very Stable: 10 ppm/year
  • Extremely low TC: <1 ppm/°C
  • Maximum Voltage: 5000V

SRL SERIES PRECISION RESISTANCE STANDARD

  • Ranges from 1 mΩ to 1.9 TΩ
  • Very Stable: 2 ppm/year
  • Extremely low TC: < 0.4 ppm/°C

SR102/103/104 SERIES Resistance Standard

  • Highest accuracy (1 ppm/yr) and stability (±0.5 ppm/yr typical) of any resistance standard
  • Lowest temperature coefficients (< 0.1 ppm/ºC)
  • Available in 3 models: 100Ω, 1000 Ω, 10,000Ω.

VRS-100 SERIES HIGH RESISTANCE STANDARDS

  • Set of nine, ten or eleven resistors – 1 kΩ, 10 kΩ, 100 kΩ,1 MΩ, 10 MΩ, 100 MΩ, 1 GΩ, 10 GΩ, 100 GΩ, 1 TΩ and 10 TΩ , open circuit (Depending on model)
  • High Accuracy – up to 20 ppm
  • Standard voltage: up to 5 kV (voltages of 10 kV are available)
  • Excellent for calibration of Meggers

SRAC STANDARD AC RESISTORS

  • Precision ac/dc resistance standards for use up to 10 kHz
  • Available for values from 1 mΩ – 10 MΩ, Contact us for custom values
  • Very stable <20 ppm/year for most values at ac and dc
  • Calibrated at dc and 1 kHz

RS SERIES RESISTANCE SUBSTITUTION BOX

  • Accurate 0.1% to 1%
  • Wide range from 0.01 Ω – 100 MΩ (Depending on Model)
  • Broad choice of standard and optional models with many powerful features
  • Compact, convenient, and rugged

GENRAD 1433 SERIES DECADE RESISTOR

  • Precision accuracy of 0.01%
  • Resistance range from 1 mΩ to 111.11111111 MΩ
  • 36 models available, 3 to 11 dials
  • Long life switches with silver-alloy contacts

HARS SERIES RESISTANCE DECADE BOX

  • Resistance from 1 mΩ to 111 MΩ
  • Available in double-power version: HARS-X2
  • Wide choice: single through 11 decade units
  • High accuracy – 0.01% (100 ppm) or 0.1% depending on model

HRRS-5 KV & 10 KV SERIES -
HIGH RESISTANCE DECADE BOX

  • Choose from units with a max. resistance of 1 GΩ, 10 GΩ, 10 GΩ, 1TΩ or 11 TΩ
  • Units use the most stable and accurate resistors and custom high voltage switches
  • Maximum Voltages of 5000 V or 10,000 V. For 2000 V, consider the standard HRRS Series
  • Used for calibration of Meggers and sourcing out precision high resistance.

RTD SERIES - PRECISION RTD SIMULATOR

  • Highest accuracy, highest stability, lowest TC of any RTD Simulator available
  • Accuracy for Z Series: 0.005% (0.012 ºC for PT 100)
  • Resolution: 1 mΩ (0.0025 ºC for PT 100)
  • Stability 0.0002% for 24 hours; 0.001% for 12 months

OS-260 & OS-270 RESISTANCE
DECADE BOXES / RTD SIMULATOR

  • The revolutionary ohmSOURCE microprocessor controlled resistor is like nothing you have ever seen before!
  • US Patent 6487456
  • Two cost-effective models available
  • Accuracy’s as tight as 0.01%, with resolution as good as 0.01Ω
  • Engineered as an ideal RTD calibrator

PRS-330/370 World's Most Precise Programmable Resistance Box & RTD Simulator

  • Resistance range: 0.1 Ω to 20 MΩ with a Resolution of 1 μΩ  or 6 digits
  • Lab grade accuracy (70 ppm + 1 mΩ): 1.5 times better than conventual manual decade resistors
  • Large color touchscreen, soft keys and intuitive interface promotes little to no training


CAPACITANCE STANDARD & dECADE bOXES

SCA SERIES CAPACITANCE STANDARD

  • Values from 1 pF to 10,000 µF in any custom value available
  • Stability as good as ±0.01 %/year
  • Two-to-five terminal configuration, depending on model
  • Excellent TC: as low as 10 ppm/°C

1404 SERIES PRIMARY STANDARD CAPACITORS

  • Available in 10 pF, 100 pF,1000 pF, 5000 pF 10,000 pF
  • 20 ppm/year stability, history has shown this to be a very conservative specification
  • The national laboratory standard for capacitance
  • For calibrating highest level standards

GENRAD 1409 SERIES STANDARD CAPACITOR

  • Values 0.001 µF (100 nF) to 1000 µF
  • Stability as good as ±0.01 %/year
  • Two-to-five terminal configuration, depending on model
  • Calibration accredited to ISO-17025 included

1422 SERIES VARIABLE AIR CAPACITORS

  • Range as low as 0.002 pF and as high as 1150 pF (Depending on Model)
  • Stability: better than 0.02% full scale per year
  • Settable to 40 ppm
  • Low temperature coefficient, low losses

GENRAD 1403 SERIES HIGH FREQUENCY STANDARD CAPACITOR

  • Available in values from 0.001 pF – 1000 pF
  • Excellent performance at high frequencies
  • ISO-17025 accredited calibration included with the standard
  • NEW 1403-1pF-BNC and 1403-0.001pF-BNC versions

CS SERIES CAPACITANCE DECADE BOX

  • Accurate 0.5% to 4%
  • Wide range from 50 pF – 1000 µF (depending on model)
  • Resolutions as good as 1 pF (depending on model)
  • Broad choice of standard and optional models with many powerful features
  • Compact, convenient, and rugged

HACS-Z SERIES HIGH ACCURACY
DECADE CAPACITANCE BOX

  • Range from 1 pF to 11,111 µF
  • High accuracy of 0.05% + 0.5 pF
  • Units available with as few as 3 and as many as 11 decades
  • Excellent Stability 100 ppm per year
  • 3-Terminal shielded construction

1417 CAPACITANCE STANDARD 1 µF - 1 F

  • 7 Switch-Selected Standard Capacitance Values: 1 µF, 10 µF, 100 µF, 1 mF, 10 mF,100 mF, 1 F
  • 3 Switch-Selected Test Frequencies: 100 Hz,120 Hz, 1 kHz
  • 0.25% direct-reading capacitance accuracy
  • 0.1% or better ratio accuracy

GENRAD 1412-BC DECADE CAPACITANCE BOX

  • Range from 50 pF to 1.11115 µF
  • Resolution better than 1 pF
  • Accuracy 0.5% + 5 pF
  • Low loss, leakage, dielectric absorption
  • Verification of calibration of LCR meters, multimeters, and instrumentation


INDUCTANCE STANDARD & dECADE bOXES

GENRAD 1482 SERIES INDUCTANCE STANDARD

  • 18 models values  from 1 µH to 10H
  • Accuracy: As Good as 0.1% !
  • Stability: As low as 0.01% per year

GENRAD 1492 DECADE INDUCTOR

  • Inductance range from 1 µH to 11 H
  • Toroidal cores for small mutual inductance and minimal effect from external fields
  • High-accuracy: ±(1% + 0.75 µH)
  • 7 decade switches

1491 Series PRECISION DECADE INDUCTOR

  • Most accurate decade inductor commercially available, accuracy’s as good as 0.8%
  • Inductance range from 1 mH or 100 µH to 11 H
  • Shielded toroidal cores for small mutual inductance and minimal effect from external fields
  • Sealed against moisture for long-term stability

LS SERIES INDUCTANCE DECADE BOX

  • Accurate 2%
  • Cost effective for lab or educational uses
  • Wide range from 1 µH – 10 H
  • 3 standard models, the LS-400, LS-400A, LS-400L
  • Compact, convenient, and rugged


METERS

LOM-510A MICRO-OHMMETER

  • 1 μΩ resolution, 4½ digits
  • Range: 1 μΩ – 200 Ω
  • 0.02% basic accuracy
  • Costs around 50% less then its peer instruments

GENRAD 1864-9700 MEGOHMMETER

  • 200 Test voltages from 10 V to 1090 Vdc
  • Rugged and portable analog megohmmeter
  • Up to 3% accuracy
  • 50 kΩ to 200 TΩ measurement range
  • Reliable high quality instrument designed to last up to 30 years

1865+ DIGITAL MEGOHMMETER I/R TESTER

  • Measurements from 1 kΩ to 100 TΩ, with auto ranging
  • 0.5% measurement accuracy
  • Programmable test voltage from 1 to 1000 Vdc
  • Improved High-visibility blue LCD graphical display for menu programming and test results
  • Direct reading of measured resistance or current

RIGID DIELECTRIC CELL LD-3

  • Designed for testing rigid flat materials
  • Frequency range of 50 Hz – 1 MHz
  • Max. Temperature 55 °C see LD-3T for higher temperature

IET/QUADTECH 1910/1920 1 MHZ LCR METER

  • 20 Hz to 1 MHz frequency range 27,000 possible frequency 
  • 0.1% basic measurement accuracy
  • Measures 15 impedance parameters, dc resistance, voltage and current
  • IEEE-488.2,RS-232, handler, and serial printer interfaces all standard
  • Wide measurement range with 5 digit measurement resolution
  • Four-terminal Kelvin connections to maintain measurement integrity

GENRAD 1689 PRECISION IMPEDANCE METER

  • The world’s standard for AC resistance, low frequency inductance and Capacitance measurement
  • 0.02% Measurement Accuracy and +/- 0.0001 Df
  • Programmable Frequency 12 Hz – 100 kHz
  • Widely accepted impedance meter in a metrology environment
  • 1689 has a built-in 4 terminal kelvin fixture for testing axial and radial components

GENRAD 1693 PRECISION LCR METER

  • The World’s standard for ac resistance, low frequency inductance and Capacitance measurement in a metrology environment
  • 0.02% measurement accuracy and +/- 0.0001 Df
  • Programmable frequency 12 Hz – 200 kHz
  • Extremely reliable can last up to 30+ years

IET 7660 PRECISION LCR METER

  • Ultra Precision – 0.05% basic measurement accuracy
  • Programmable frequencies from 10 Hz to 2 MHz
  • Standard USB-Type B, RS-232, GPIB and LAN Interfaces
  • Measures 14 impedance parameters (2 simultaneously)

GENRAD 1538-A STROBOSCOPE

  • The highest flashing rates for a stroboscope-up to 150,000 Flashes per mn
  • Flash duration from 0.5 μs to 3.0 μs for clear, crisp images.
  • Accessory energy-storage capacitor 1538-P4 for very short single flashes.
  • High accuracy stroboscope — rpm measurements can be made to ± 1%
IET Labs Model 1986 Omnical Sound Level Calibrator

1986 OMNICAL SOUND LEVEL CALIBRATOR

  • Capable of testing all the basic characteristics of virtually any acoustic instrument or system
  • Multi-level outputs 74, 84, 94, 104, or 114 dB re 20µPa output
  • Multi-frequency outputs 125, 250, 500, 1000, 2000 or 4000 Hz
  • Portable battery-operated