Lake Shore Cryotronics — Precision Cryogenic & Magnetic Measurement, Now Through Trias Automation

A DwyerOmega Brand | Cryogenic Temperature Sensors, Controllers, Gaussmeters & Hall Probes

Lake Shore Cryotronics has spent nearly six decades building the reference instruments that national labs, universities, and advanced manufacturers use to measure and control what most sensors can't reach — deep cryogenic temperatures and precision magnetic fields. Now operating under the DwyerOmega group, Lake Shore continues to design and manufacture its own sensors and electronics rather than relaying on third-party OEM components, which is why its Cernox® RTDs, silicon diodes, and cryogenic temperature controllers remain the benchmark specification in superconductivity, quantum computing, semiconductor characterization, aerospace thermal testing, and materials research labs worldwide.

Trias Automation brings this instrumentation to Indian research institutions, OEMs, and industrial test labs with local technical support, faster quote turnaround, and after-sales assistance — so engineering teams working from 5 mK to 1,505 K, or measuring fields from micro-gauss to hundreds of kilogauss, don't have to navigate import logistics alone.

Product Category

Cryogenic Temperature Sensors

Lake Shore Cryogenic Temperature Sensors — Cernox®, Silicon Diode, Rox™, Germanium, Platinum

Lake Shore's sensor range covers virtually every cryogenic thermometry requirement from 5 mK to 873 K. Cernox® RTDs are the industry's most widely specified cryogenic sensor, valued for low magnetic field-induced errors, high sensitivity at low temperatures, excellent radiation resistance, and fast thermal response (as quick as 1.5 ms at 4.2 K). For general-purpose cryogenic use without strong magnetic fields, DT-670 silicon diodes deliver the widest calibrated range (1.4 K–500 K) of any diode in the industry with tight tolerances from 30 K–500 K. For sub-50 mK work, Ultra-Low Temperature Rox™ and Interchangeable Rox™ sensors extend usable measurement down to 5 mK, while capacitance sensors are the choice when massive magnetic fields would otherwise disturb resistive thermometry. Platinum RTDs cover the higher end, up to 873 K, conforming to IEC 751.

Key specs:

• Temperature coverage: 5 mK to 873 K across the full sensor family

• Cernox®: 0.1 K–420 K, ultra-high vacuum compatible (to 10⁻¹⁰ Pa), non-magnetic package options

• DT-670 silicon diode: 1.4 K–500 K, SD package rated for repeated thermal cycling

• Interchangeable Rox™ (RX-102A/202A/103A): standard-curve interchangeable, usable to 50 mK

• Platinum: 14 K–873 K, ±5 mK reproducibility at 77 K

• HR Series: full 15-year material traceability for space and mission-critical builds

Cryogenic Temperature Controllers & Monitors

Lake Shore Temperature Controllers — Model 336, 350, 372, 346, 335, 325

Lake Shore's controller lineup spans single-loop lab instruments to large multi-channel systems for cryostats, dilution refrigerators, and MBE/UHV chambers. The Model 336 is the workhorse 4-input, 4-output controller supporting diode, RTD, and thermocouple sensors with control down to 300 mK. The Model 350 is purpose-built for He-3 and ultra-low-temperature refrigeration platforms, with patented low-noise input circuitry to minimize self-heating and 4 independent PID loops. For dilution refrigerators operating below 100 mK, the Model 372 AC resistance bridge provides precision impedance measurement and is expandable to 16 channels. The Model 346 is the choice for large systems needing serious heater power — up to 400 W across 4 outputs, controlling from 300 mK to 1,505 K.

Key specs:

• Control range across the family: 100 mK to 1,505 K

• Model 336: 4 sensor inputs, 4 PID outputs (100 W / 50 W into 50 or 25 Ω)

• Model 350: optimized for Cernox®, 75 W warm-up heater + 1 W sample heater + 2 auxiliary outputs

• Model 372: AC resistance bridge for DR use below 100 mK, up to 10 W heater power, scanner-expandable to 16 channels

• Model 346: 10 sensor inputs (expandable to 26), 400 W total heater capacity

• All models support diode, RTD (Cernox®/platinum), and thermocouple sensor types

Gaussmeters & Teslameters

Lake Shore Gaussmeters & Teslameters — F71, F41, Model 475, Model 425

For DC and AC magnetic field measurement and control, the F71 multi-axis and F41 single-axis teslameters are Lake Shore's current-generation platform, featuring patented TruZero™ technology that eliminates manual probe re-zeroing, a 5-inch TiltView™ touchscreen, and field ranges from 1 mG to 350 kG across DC to 50 kHz. The Model 475 DSP gaussmeter remains a strong benchtop choice for electromagnet field control and AC field measurement with 15 band-pass and 3 low-pass AC filters and resolution to 0.02 mG. The Model 425 is the economical entry point for permanent magnet QC and magnet sorting applications.

Key specs:

• F71/F41: 1 mG–350 kG range, DC–50 kHz, ±1.5 G accuracy at 1 kG, USB/Ethernet, LabVIEW/IVI.NET/Python drivers

• Model 475: 3.5 G–350 kG, DC–50 kHz, ±0.05% basic DC accuracy, peak capture to 20 µs pulses

• Model 425: 35 G–350 kG, DC–10 kHz, ±0.20% basic DC accuracy, pass/fail sort function

• Applications: permanent magnet QC, magnet sorting, electromagnet field control, AC field measurement, scientific research systems

Hall Probes & Hall Sensors

Lake Shore manufactures its own Hall generators in-house rather than sourcing third-party elements, giving tighter control over linearity, temperature stability, and long-term repeatability. The probe range covers transverse, axial, and tangential configurations suited to gap measurement in electromagnets, motor and actuator characterization, and magnet production QC, with probe selection driven by field range, spatial resolution, and temperature environment.

Key specs:

• Configurations: transverse, axial, tangential probes

• Pairs with F71/F41 teslameters and Model 425/475 gaussmeters

• Used for: electromagnet gap measurement, motor/actuator field mapping, magnet production sorting, Hall effect research (paired with MeasureReady® M91 FastHall™ controller)

Why Choose Lake Shore 

• In-house sensor manufacturing — Cernox®, silicon diodes, and Hall generators are designed and calibrated by Lake Shore itself, not resold third-party elements, giving traceable, repeatable calibration data.

• Widest practical temperature coverage — a single vendor spans 5 mK to 1,505 K across sensors, controllers, and monitors, reducing the need to qualify multiple suppliers for one cryostat or test rig.

• Radiation- and field-resilient sensor options — Cernox® and HR Series sensors are specified into aerospace and high-energy physics programs where standard RTDs fail.

• Reference-grade calibration infrastructure — ISO-accredited calibration facilities back every sensor and instrument with NIST-traceable data.

• Long-standing R&D pedigree — nearly 60 years of instrumentation used in superconductivity, quantum computing, semiconductor, and materials science research, now backed by DwyerOmega's expanded manufacturing and commercial scale.