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Scientific Instruments Products

The initial products developed and manufactured by Scientific Instruments were cryogenic temperature sensors including Germanium Resistance thermometers and Silicon Diodes. These temperature sensing devices created opportunities in the aerospace, industrial and laboratory research industries. Of particular note is the fact that SII supplied a number of Germanium Resistance thermometers that were installed into Helium and Hydrogen systems on the Apollo space craft and at the end of the 1960’s flew on lunar landing missions.

The company presently is active in seven distinct product areas, although separate; these products are “synergistic” as they are technologically related to temperature and liquid level measurement and control. With one exception, all product areas supported by Scientific Instruments are related to cryogenic applications, meaning extremely low temperatures, typically in range of 0.05K to 300.0K (-462.0F to +250.0F).

These scientific instrumentation Cryogenic Temperature Measurement products include:

cryogenic temperature measurement, cryogenic temperature controllers, lng density, scientific instrumentation, how to measure natural gas, commercial cryogenic sensors

  • cryogenic temperature sensors
  • cryogenic temperature instruments (controllers/monitors)
  • liquid natural gas- level
  • temperature & density gauge (LTD)
  • Raman Spectroscopy (RGAS) for LNG
  • aerospace temperature probes
  • aircraft temperature probes
  • and industrial probes

For product assistance, please contact Scientific Instruments.

Model SI-7000 LTD Tank Gauging System

After 50 years of delivering the world's most trusted LNG tank-top LTD systems – the completely re-imagined, redesigned, and most advanced solution for LNG tank profiling: The Scientific Instruments Model SI-7000 LTD.

Cryogenic Temperature Probes

The Series 44 Temperature Probes are constructed of stainless steel and are hermetically sealed units allowing for installation into hazardous environments.

Aircraft Temperature Probes

Scientific Instruments is the manufacture of many different temperature related commercial aircraft parts. Click here for more information on available probes, CrossReference

Scientific Instruments is the proven leader in cryogenic temperature probe design and the Aircraft Temperature Probes. Scientific Instruments was the sole source for ground support temperature transducers for the entire life of Space Shuttle Program. This trend continues today through the manufacture of several NASA designed probes along with our support of the private space community commercial crew programs.

Scientific Instruments offers a variety of temperature probes that allow mounting in hazardous environments. These units are constructed of stainless steel, are hermetically sealed, and the sensing element is mounted in a temperature resistant epoxy at the tip. The probes are designed for direct immersion or thermowell applications.

For more information, please send us an email or call us at 1-800-466-6031. A Scientific Instruments associate will be happy to assist you.

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Raman Gas Analyzer System

The Raman Gas Analyzer System promises to change the way natural gas is measured. Raman spectroscopy is an indispensable tool for buyers and sellers interested in managing monetary risk as well as for process managers desiring to increase production efficiencies.

Model SCM10

The Scientific Instruments, single-channel Model SCM-10 Temperature Monitor provides the accuracy, resolution, and interface features of a benchtop temperature monitor in an easy to use, easily integrated, compact instrument.

Model 9302/9304/9308

With two or four input channels with ethernet connectivity, these multi channel temp monitor are the most flexible and accurate temperature monitors currently available. The monitor's front panel consists of a large, bright TFT-LCD display a 4-key keypad, an audio alarm and three status LEDs. Several display formats may be selected. Up to eight temperature readings may be displayed simultaneously or two channels with input names and temperature shown in a large easy to read font. Additional screens include temperature readings along with relay and alarm status information. A single key press takes the screen to a menu tree where most features and functions of the instrument can be configured.The status of built-in alarms and relays is indicated by LEDs located below the display


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