Introducing Cryomagtech’s Cryogenic Temperature Controllers, Cryogenic Temperature Monitors, and Cryogenic Thermometers & Sensors – engineered for ultra-low temperature labs worldwide. Our devices deliver stable, millikelvin-level control and measurement from 0.3 K up to 1505 K (and beyond). Whether you need high-power multi-loop controllers, multi-channel monitors, or rugged sensors, Cryomagtech has you covered. Join researchers and engineers in the US, Germany, Japan, South Korea, Singapore, and Switzerland who trust Cryomagtech for reliable cryogenic solutions.
- Controllers (CMT202 & CMT-290)
- Monitors (CMT-290 Monitor)
- Thermometers & Sensors (CMT64 & CMT100)
👉Secure Precise Cryogenic Control – Request a Quote Now!
1. The Challenge in Cryogenic Control (Problem & Solution Overview)
Ultra-low temperature experiments demand extreme stability and precision. Even tiny fluctuations or sensor errors can compromise data in superconductivity, quantum, or semiconductor research. Laboratories often struggle with controllers that drift, monitors that lack multi-channel support, or sensors unsuited for high fields. Cryomagtech solves this by integrating advanced control algorithms and high-quality sensors into a complete solution. Our cryogenic temperature controllers use real-time PID loops and dual constant-current technology to eliminate drift. Combined with multi-sensor temperature monitors and calibrated silicon/platinum thermometers, Cryomagtech instruments ensure consistent results and faster experiments, not guesswork.
2. Core Features & Unique Advantages
2.1 Cryogenic Temperature Controllers (Models: CMT290, CMT202)
- Wide Temperature Range: CMT-202 covers 1.4–450 K, and CMT-290 operates from 0.3 K up to 1505 K.
- High Power Output: Delivers up to 50 W (CMT-202) and dual loops totaling 200 W (2×100 W) for fast cooling/heating.
- Multi-Sensor Input: Supports multiple sensor types (Pt100, Rh–Fe, diode, NTC, thermocouples) with up to 10 channels (expandable) on the CMT-290.
- Precise PID Control: Real-time PID loops with 24-bit ADC ensure stability to ±0.05% F.S. (≈10 mK) and minimal overshoot.
- Flexible Interfaces: Standard communications include RS-232/RS-485, USB, Ethernet, plus analog outputs and alarms for system integration.
- User-Focused Design: Compact, rack-mountable units with intuitive displays and LabVIEW/Modbus support speed up lab setup.
2.2 Cryogenic Temperature Monitors (Model: CMT290 Monitor)
- 8 Simultaneous Channels: Monitors up to 8 sensors (diode, Pt, Rh-Fe, etc.) with real-time display in K, °C, V, or Ω.
- Ultra-Low Measurement: Reads down to 1.2 K with low noise, making it ideal for cryogenic experiments and setups.
- Versatile Communication: Includes IEEE-488 and RS-232C interfaces and analog outputs for data logging and automation.
- Stable & Accurate: Engineered for long-term stability and high resolution; perfect for sensor calibration and batch monitoring.
- Expandable & Modular: With printer connectivity and external logging, the CMT-290 monitor scales from bench-top labs to industrial cryogenics.
2.3 Cryogenic Thermometers & Sensors (Models: CMT64 Silicon Diode, CMT100 Platinum RTD)
- CMT-64 Silicon Diode: Delivers precise cryogenic readings (4–325 K) with low self-heating and a standardized V–T curve for consistent interchangeability. Durable packages withstand thermal cycling without drift.
- CMT-100 Platinum RTD: Provides 20–500 K accuracy with ±1 K tolerance, following IEC751 standards above 70 K. Thin-film design yields fast response times and excellent performance even in high magnetic fields.
- Superior Quality: All sensors are ISO-calibrated and vacuum-compatible. They feature 4-wire leads and cryogenic wiring, ensuring minimal error due to lead resistance.
- Field-Proof Design: CMT-100 tolerates cryomagnetic environments (minimal deviation above 40 K), while CMT-64 diodes minimize self-heating via ultra-low excitation currents.
- Versatile Packages: Choose from standard and custom housings (bobbin, screw-mount, insulated, etc.) for integration into probes, cryostats, or OEM systems.
3. Technical Specifications
3.1 Cryogenic Temperature Controllers (CMT202 & CMT-290)
| Category | CMT290 Specification | CMT202 Specification |
|---|---|---|
| Temperature Range | 0.3 K – 1505 K | 1.4 K – 450 K |
| Temperature Resolution | 0.0001 K | 0.01 K |
| Measurement Accuracy / Error | Up to 10 mK | < 0.05% F.S ± 1 digit |
| Measurement Rate | — | 20 readings/sec |
| Input Channels | 2 standard (expandable to 10), each independent | — |
| Sensor Compatibility | Diode, Cernox, Platinum RTD, Thermocouple, NTC Sensor | Platinum resistor (primary), non-Pt sensors supported via interpolation |
| Control Loops | Loop 1 = 100 W (upgradable to 200 W) Loop 2 = 1 W (upgradable to 100 W) | Max heater power 50 W (0–24 V, 0–2 A) |
| Signal Filtering | Window 1–10% FS; Points 2–64 | — |
| PID Control Range | P 0–1000 (0.1 step) I 0–1000 (0.1 step) D 0–200 (0.1 step) Manual 0–100% (0.01%) | — |
| A/D Conversion / ADC Resolution | 24-bit A/D converter | 16-bit A/D |
| Temperature Display Resolution | 0.0001 K | — |
| Excitation Current | — | 1 mA DC constant source |
| Display Screen | 5” color capacitive touchscreen (EN/CH bilingual) | — |
| Display Units | K, °C, V, Ω (selectable) | °C or K |
| Communication Ports / Interface | Ethernet, RS-485 (≤1200 m), USB | RS-232 |
| Data Logging | Up to 64 temperature curves (20 pre-calibrated) | — |
| Measurement Method | — | Four-lead resistance method |
| Line Interpolation | — | 20 points (for non-Pt sensors) |
| Platinum Resistance Correction | — | Zero and linear full-scale |
| Alarm Relay | — | 10 A @ 220 VAC / 30 VDC |
| Power Supply | AC 100–240 V, 50/60 Hz | 190–240 V AC, 50 Hz, 100 W |
| Dimensions (L × W × H) | — | 320 × 217 × 102 mm |
| Weight | — | 3.8 kg |
| Safety Protection | Set-point limit, curve limit, heater power limit, ramp-rate limit, short-circuit protection, heater-off at startup | — |
3.2 Cryogenic Temperature Monitor (CMT-290 Monitor)
| Parameter | Specification |
| Supported Sensors | Silicon Diode, GaAlAs Diode, Platinum Resistor, Rhodium Iron, Germanium, Glassy Carbon, Cernox, Ruthenium Oxide, Carburized Ceramic |
| Input Channels | 8 (2 groups of 4 inputs each; each group must use the same sensor type) |
| Measurement Method | 4-wire technique with 8 constant current sources |
| Maximum Reading Rate | 16 readings per second |
| User Calibration Curves | 8 channels (each stores up to 200 data points) |
| Two-/Three-Point Correction | ±0.25 K for Diodes (30–375 K); ±0.25 K for Platinum Sensors (70–375 K) |
| Mathematical Functions | Max / Min / Linear Equation |
| Filtering | Averaging from 2 to 64 samples |
| Display | 4-line × 20-character LCD display |
| Display Update Rate | 2 readings per second |
| Resolution | 0.001 ° (0–99.999 °) |
| Signal Indicators | Remote (R), Alarm (A), Data (D), Max (>), Min (<), Linear (/) |
| Keyboard | 20 water-resistant membrane keys with numeric and function controls |
| Interfaces | IEEE-488.2 (SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT0, C0, E1); RS-232 Serial Port |
| Printing Capability | Serial printer supported based on logged data parameters |
| Recorded Data | Up to 16 Max/Min values per input cycle |
| Data Sources | Temperature, Sensor Readings, Linear Equation |
| Alarm Settings | High/Low set points, Dead band, Open/Closed loop, Buzzer on/off |
| Alarm Modes | Display alert, buzzer, relay activation |
3.3 Cryogenic Thermometers & Sensors (CMT-64 & CMT-100)
3.3.1 CMT-64 Silicon Diode
| Calibration Type (CMT-64) | Calibration Type | Temperature Range | Standard Range | Accuracy |
| A | 2 K – 100 K / 100 K – 325 K | N/A | ±0.25 K / ±0.5 K | |
| B | 2 K – 325 K | N/A | ±0.5 K | |
| C | 2 K – 325 K | N/A | ±1 K | |
| 1.4L | 1.4 K – 325 K | 1.4 K – 325 K | ±0.1 K | |
| 1.4H | 1.4 K – 500 K | 1.4 K – 500 K | ±0.1 K | |
| 4L | 4.2 K – 325 K | 4 K – 325 K | ±0.1 K | |
| 4H | 4.2 K – 500 K | 4 K – 500 K | ±0.1 K | |
| 70L | 70 K – 325 K | 70 K – 325 K | ±0.1 K | |
| 70H | 70 K – 500 K | 70 K – 500 K | ±0.1 K | |
| Typical Resistance (CMT-64) | T (K) | R (Ω) | dR/dT (Ω/K) | |
| 20 K | 2.2913 | 0.085 | ||
| 50 K | 9.3865 | 0.36 | ||
| 77 K | 20.38 | 0.423 | ||
| 150 K | 50.788 | 0.409 | ||
| 300 K | 110.354 | 0.387 | ||
| 500 K | 185.687 | 0.347 | ||
3.3.1 CMT-100 Platinum RTD
| Temperature Range & Accuracy (CMT100) | Model | Temperature Range | Accuracy | |
| 2P | 77 K ~ 325 K | ±0.25 K | ||
| 2P | 325 K ~ 400 K | ±0.9 K | ||
| 2P | 400 K ~ 475 K | ±1.3 K | ||
| 2P | 475 K ~ 500 K | ±1.4 K | ||
| 20L | 20 K ~ 325 K | ±0.1 K | ||
| 20H | 20 K ~ 325 K | ±0.1 K | ||
| 70L | 77 K ~ 325 K | ±0.1 K | ||
| 70H | 77 K ~ 500 K | ±0.1 K | ||
| Physical Properties (CMT100) | Mass | Leads | Internal State | Material |
| 17 mg | 2, AgPd | Solid | Thin-film platinum, ceramic substrate, ceramic encapsulation | |
4. Application Scenarios
Cryomagtech instruments empower both lab research and industrial use across major markets:
- United States (and Europe – Germany, Switzerland): Used in leading university labs and national facilities for superconductivity research, quantum materials, and semiconductor testing. For example, cryogenic probe stations and MRI/R&D centers rely on our precise temperature control.
- Japan & South Korea: Employed in high-tech industries (quantum computing, low-temp physics) and R&D institutes where stable sub-Kelvin environments are critical. Our controllers and monitors are integrated into cryocoolers and cold chambers for semiconductor fabrication and sensors calibration.
- Singapore: Singapore’s research hubs and specialty manufacturers use Cryomagtech sensors for metrology. Our compact sensors and monitors suit space-limited labs and custom OEM equipment used in thermal vacuum tests and nanotech research.
- Global Industry: Beyond academic labs, Cryomagtech products serve satellite component testing, medical device cryogenics, and industrial gas liquefaction plants worldwide. Certifications (CE, RoHS) ensure compliance for export markets; our global support network provides local service and training.
Cryomagtech’s proven performance and local support make us a partner of choice for cryogenics from Silicon Valley to Tokyo, Berlin to Singapore.
5. Customer Testimonials & Trust Signals
- “The CMT-290 controller has transformed our low-temperature research. Its stability and accuracy are unmatched in our cryogenic lab.” – Senior Physicist, Major University Lab
- “With Cryomagtech sensors, we achieved millikelvin repeatability in our dilution refrigerator experiments. Outstanding reliability.” – Cryogenics Engineer, National Metrology Institute
- “We appreciate Cryomagtech’s fast support and consistent quality. The CMT202 controller runs 24/7 in our production environment with zero failures.” – QA Manager, Cryo-Electronics Manufacturer
Certification & Support: Cryomagtech operates under an ISO 9001-certified quality system. All products meet CE and RoHS standards. We provide 24/7 technical support via regional engineers and comprehensive documentation. (Insert certification badges: ISO 9001, CE, RoHS.)
6. About Cryomagtech
Cryomagtech is a global leader in cryogenic and magnetic measurement technologies, dedicated to innovation in precision instruments. Our team of engineers and physicists designs each product for reliability in harsh cryogenic environments. With a history of breakthroughs in temperature control, Cryomagtech supports customers with custom system integration, calibration services, and responsive after-sales service. We stand behind our products with rigorous testing and fast spare-part availability, ensuring uptime for critical research projects.
Mission: Enable next-generation research by providing ultra-reliable, high-performance cryogenic instrumentation.
Global Reach: Based in Nanjing, China, Cryomagtech serves 20+ countries with local distributors and direct support in key regions. Every Cryomagtech customer benefits from our commitment to quality and innovation.
7. Ready to Get Started
Experience the precision of Cryomagtech’s Cryogenic Temperature Controllers, Monitors & Sensors in your lab or production line. Fill out the form below to get detailed specifications or request a personalized quote:
8. Frequently Asked Questions
Q: What makes Cryomagtech’s Cryogenic Temperature Controllers unique?
A: Our controllers combine ultra-low temperature capability (down to 0.3 K) with high stability and multi-loop power. They use 24-bit precision ADCs and advanced PID control to maintain temperature within millikelvin during long experiments. Unlike typical controllers, Cryomagtech models support multiple sensor inputs (Pt100, diodes, etc.) and dual 100 W/200 W heater outputs, catering to diverse low-temp setups.
Q: Can I expand the number of sensors on the Cryogenic Temperature Monitor?
A: Yes. The CMT-290 monitor has 8 standard channels and can accommodate additional modules for more inputs. It supports various sensor types simultaneously, making it easy to upgrade for extra channels or mixed-sensor arrays.
Q: What temperature range do these instruments cover?
A: Collectively, our products cover from 0.3 K to 1505 K. Controllers like the CMT-202 cover 1.4–450 K, while the CMT-290 extends down to 0.3 K and up to 1505 K. The CMT-290 monitor reads down to 1.2 K. For sensors, CMT-64 diodes measure 4–325 K and CMT-100 RTDs cover 20–500 K.
Q: Are Cryomagtech products compliant with international standards?
A: Yes. All Cryomagtech temperature controllers, monitors, and sensors have CE and RoHS compliance. Our manufacturing facility is ISO 9001-certified. These certifications ensure suitability for use in Europe, the US, and Asia without regulatory issues.
Q: How do I choose between the CMT-64 and CMT-100 sensors?
A: Use CMT-64 silicon diode sensors for highest sensitivity below ~80 K and fast response. They are ideal for experiments requiring sub-10 K measurements. Use CMT-100 platinum RTDs for 20–500 K range where standard curve behavior is needed, especially if magnetic field tolerance or radiation resistance is required.
Q: What kind of support does Cryomagtech provide for international customers?
A: Cryomagtech has global distributors and offers remote technical support 24/7. Our team provides consultation on system integration, application training, and calibration. We also offer online resources (manuals, whitepapers) and prompt spare-part delivery to research centers in the US, Europe (Germany, Switzerland), Japan, South Korea, Singapore, and beyond.
Q: How can I get a quote or technical datasheet?
A: Simply click “Request a Quote Now” or “Download Full Specifications” above, or email our sales team. We’ll guide you to the right product based on your application and deliver a detailed proposal.