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• What is a Standard Platinum Resistance Thermometer?

News

Applications & Case Studies

• Isotech in Climate & Oceanographic Research
• Why the Isotech microK is Found on Mountain Tops

Awards

• Isotech Recognised as Export Champions
• Long term service awards
• Export Champion Award
• Queen’s Award Presentation
• A trip to the palace
• Innovation: Isotech wins Queens Award for Enterprise

Events

• Back from TEMPMEKO-ISHM 2025
• Proud to be a Platinum Sponsor of TEMPMEKO-ISHM 2025
• ITS10 Conference in California
• World Metrology Day
• World Metrology Day 2020: Measurements for global trade
• Isotech North America achieve ISO17025 accreditation
• Isotech at Sensors & Instrumentation Live
• Isotech at Expofybi in Argentina
• Isotech at NCSLI 2019 – Metrology in motion
• TEMPMEKO 2019 – Chengdu, China
• Isotech 10th International Seminar
• 2018 NCSL International Workshop & Symposium
• TEMPMEKO 2019
• International Business Festival
• Isotech at NCSLI 2017

Featured Products

• Introducing the Model 526 Ultra-Low Dry Block Calibrator to -115°C
• Completing the microK² Family: Two New Precision Thermometry Bridges
• Maximise Efficiency with the 798O Large Volume Liquid Bath
• The Isotech 991: Tympanic Thermometer Checker
• Unveiling New Rugged Range of Temperature Calibrators -40°C to 660°C
• Featured Products: Your Solution for Precise Temperature Measurement 

Featured Videos

• New Introductory Video: How to use a Dry Block Bath for Temperature Calibration
• Featured Video: Pegasus R – Blackbody Source
• Featured Video: Introduction to Gallium Fixed Point
• Featured Video: Introduction to Model 459 Cryostat 
• Featured Video: Introduction to Standard Platinum Resistance Thermometers, SPRTS 
• Featured Video: What is a Water Triple Point Cell?
• Featured Video: Introduction to Fixed Point Cells
• New Video: What is a Mercury Fixed Point?
• New Video: Introducing Thermometry Bridges
• Liquid Baths in Calibration Laboratories
• What is a Standard Platinum Resistance Thermometer?

General News

• Why Do We Need to Measure to 0.001°C?
• Isotech acquires Metrosol Limited
• Isotech Catalogue Updates Now Available
• Celebrating 45 Years of Isotech – Our Photo Competition Winner
• Celebrate 45 Years of Isotech With Our Photo Competition
• The Growing Importance of Temperature Accuracy in HVAC Systems 
• Isotech – Your Solution to Temperature Calibration
• Trade in Promotion: microK thermometry bridges
• New SPRT Calibration Service – Flexibility and Savings
• Isotech Seminar Brings Together Global Experts to Lead Innovation in Temperature Calibration
• Temperature Calibration: Selecting the Right Equipment
• Achieve Precision in Temperature Measurement Using High-Accuracy Traceable Solutions
• How to Calibrate at Higher Temperatures?
• Cal Lab Magazine Features Article on Thermometry Bridge Calibration
• Congratulating Temperature Controls On NATA Accreditation
• Isotech celebrates Klasmeier’s 35th anniversary
• Isotech Head Offices to Expand Their Premises
• Isotech milliK featured on Channel 5’s The Gadget Show
• Isotech celebrates 40 years of temperature innovation
• Download Part 2: Double junction thermocouple
• John Tavener obituary
• Custom calibration blocks for Isotech temperature calibrators
• Low cost blackbody to improve thermal imager accuracy
• New Gallium Fixed Point Cell for the Hyperion R
• Temperature metrology and Blackbody sources in Covid-19
• Free stirred liquid bath kit
• Isotech celebrates 40 years in business
• microK thermometry bridge trade-in program
• Metrology and cakes? Raising money for Macmillan
• Isolab Singapore: celebrating 25 years of success
• New brochure: Calibration solutions for industrial sensors
• Isotech named “Export Champion” for third year running
• Lower calibration uncertainties for SPRTS
• New definition for the Kelvin
• Laboratory update at Klasmeier Kalibrier- Und Messtechnik
• Isotech Distributors
• Isotech featured in NCSLI’s Metrologist Magazine
• Accredited calibration: Instrumental for success
• Isotech 875 Fluidized Calibration Bath
• NCSLI “Measurement accuracy and the impact on society”

Product News

• Automatic Temperature Calibration
• New milliK Features for High Accuracy Thermometer
• Isotech Number One for Dry Block Inserts
• New: Hyperion R Updated
• Isotech Furnace Update
• New solution to calibrate short sensors to 1100°C
• Isotech microK update brings new features
• Isotech milliK Precision Thermometer software update
• Angled platinum resistance thermometers
• Featured Product: Copper Point SPRT
• Featured Product: Water Triple Point Cells
• Isotech Carbon Dioxide Triple Point Cell
• New: microK Gold
• Metrology product updates

Technical Insights

• Why Dry Block Display Resolution Isn’t the Whole Story
• New; exploring the double junction thermocouple
• New whitepaper: Cold junction thermocouple probes

Products

• Model 526 Low Temperature Calibration Source
• 913-HC microsKanner
• microK² Precision Thermometry Bridge
• 991 Tympanic Thermometer Checker
• 798O Large Volume Stirred Liquid Bath
• 787 High Rugged Dry Block Calibrator
• 786 Low Rugged Dry Block Calibrator
• Model 547 Professional Thermocouple Calibration Furnace
• PEGASUS-T
• TTI-10 High Accuracy Handheld Thermometer
• Terminal Adapter Model 956
• QuickCal Blackbody
• Hyperion R Portable Blackbody 982
• Medusa 511
• Fast-Cal High
• Fast-Cal Medium
• Quick Cal Low
• Cryostat Model 459
• Simple Nitrogen Boiling Point Apparatus Model 461
• Europa 4520
• Venus 4951
• Drago 4934
• Thermocouple Homogeneity Scanner Model 881
• Hotbox Model 830
• Isorac Model 844
• Isobox Model 842
• TRUrac Model 847
• TRU Model 937
• Multi Junction Laboratory Probes
• TRU Model 938
• CAL NotePad
• Icarus
• I-Cal EASY
• Gas Flow Model 984
• Blackbody ITS-90 Fixed Points
• Cyclops Model 878
• Oberon R Model 426
• Medusa R Model 999
• Pegasus R Model 970
• Gemini R Model 976
• Greybody Source Model 975
• Blackbody Source Model 988
• Blackbody Source Model 989
• Model 944
• Miniature Fixed Resistor Model 836
• 8 Way Selector Switches Models 954 and 958
• millisKanner Channel Expander
• TTI-7+
• TTI-22
• Temperature Controlled Fixed Resistors
• milliK Precision Thermometer
• Standard Resistor Maintenance Bath
• Standard Resistors
• RBC Resistance Bridge Calibrators
• microK Channel Expander
• microK Gold
• microK Precision Thermometry Bridge
• Semi Standard Thermocouples
• Semi Standard PRTS
• Medusa 510
• Large Volume Liquid Bath Model 820
• Oceanus-6
• Small Hot Plate Model 983
• Fast-Cal Low
• Quick Cal High
• Pegasus 4853
• Gemini 4857
• Jupiter 4852
• Calisto 4953
• Hyperion 4936
• Standard Thermocouple Model 1600 NCJ
• Isotech Model 909 SPRT
• Saturn Model 877
• Fluidised Furnace Model 875
• Stirred Ice Bath Model 813
• Hydra Model 798
• Orion Model 796
• Parallel Tube Liquid Bath Libra Model 785
• Parallel Tube Liquid Bath Model 915
• Nitrogen Boiling Point Apparatus Model 18205
• NPL Platinum / Palladium Thermocouple
• Gold / Platinum Thermocouple
• Standard Thermocouple Model 1600
• Copper Point SPRT Model 108462
• Isotech Model 96178 HTSPRT
• Isotech Model 670 SPRT
• ISOTowers
• Oberon – for Slim Cells
• POTTS – Medusa Model 510 & 511
• POTTS – Oceanus-6 Model 580
• POTTS – Europa-6 Model 520
• Slim Fixed Point Cells
• Annealing Furnace
• Three Zone High Temperature Furnace 465
• Medium Temperature Furnace
• Low Temperature Furnace
• Dual and Heat Pipe Furnaces
• ITS-90 Optimal Fixed Point Cells
• Mercury Triple Point Apparatus
• Mercury Triple Point Cell
• Gallium Fixed Point Apparatus
• Gallium Fixed Point Cell
• Water Triple Point Maintenance Bath
• Ice mantle maker for water triple point cells
• Model 471 Simple Argon Apparatus
• Jarrett-Isotech Water Triple Point Cells

Documents

• Waterproof Platinum Thermometers
• Distillation Systems
• Characterisation of AC & DC resistance bridges
• How to Calibrate Thermometry Bridges
• Double Junction Thermocouple
• Automation of Temperature Calibration
• Standard Resistor Calibration
• Platinum Resistance Thermometer: Self Heating
• Strain in Standard Platinum Resistance Thermometers
• Cold Junction Thermocouple Probes
• Why Use a Standard Platinum Resistance Thermometer?
• ITS-90 Water Triple Point References (±2 µK)
• Primary Laboratory Comparisons
• Water Triple Point Reference Cell (ITS-90)
• The Water Triple Point Cell – An Optimal Realization
• Water Triple Point Analysis: Quartz vs Borosilicate Glass
• Water Triple Point Cell Qualification and Use
• Water, Ice and the Triple Point – a review of the WTP
• Water Cell Analysis – 2001 to 2010.
• Practical Limitations of ITS-90
• Metal Clad Fixed Point Cells for the ITS-90
• Slim Cells: An International Comparison
• The Gallium Point: Alternative to Water Triple Point
• Gallium Cell Intercomparison: UK vs NIST Reference
• Gallium Melting Point: Realisation Guide
• Silver ITS-90 Fixed Point Cell Assembly
• Stem Conduction and Light Piping in ITS-90 Cells (UKAS Lab)
• ISOTowers: Improvements in Calibration of Thermometers
• Introducing ISOTowers
• Mercury Triple Point Realisation in Europa Calibrator
• Improving Temperature Calibration Accuracy with ADC
• Metrology Error Reduction Using Substitution Topology
• microK Thermometry Validation with sub mK Uncertainty
• Simple Resistance Network for Calibrating Resistance Bridges
• Abstracts of Three Further Pages Relating to RBC
• Performance Assessments Of Thermometer Resistance Bridges
• Experiences with Isotech SPRT’s During 2007
• Standard Platinum Resistance Thermometers – FAQs
• Platinum Resistance Thermometers Stable to ±0.001°C Per Year
• Innovations in Thermal Metrology: Copper Point Improvements
• Investigating The Performance of Copper Point Standard Resistance Thermometers
• A New Thermometer for the Copper Point
• The Interesting Life and Times of 108462 – a HTSPRT
• High Temperature SPRTS
• Which Model? Basic, Site or ADVANCED
• How Hot is Your Block
• Industrial Measurements with Very Short Immersion
• Temperature Calibration; Depths of Immersion
• Industrial Resistance Thermometry up to 700°C
• International Standard Changes for Industrial PRTs
• Automating Temperature Calibration Baths with Simple Low Cost Image Acquisition
• Gold/Platinum Thermocouple and the DC Measurement Requirements
• A Quick Guide to Temperature Sensors and Calibration
• Why Laboratories need Water and Gallium Cells
• Calibrating Thermometers
• Why Calibrate?
• Journal of Thermometry Index
• The Absolute, or Thermodynamic Kelvin, Temperature Scale
• Fixed Points of the ITS-90 and Confidence in the Metal Freezing Points of ITS-90
• The Standard Platinum Resistance Thermometer
• Measuring the Resistance of Standard Platinum Resistance Thermometers
• Industrial Platinum Resistance Thermometers and Common Temperature Measurement Errors
• Thermistor Thermometers
• Metal Melting and Freezing Equilibria Phase, Phase Diagrams, Cryoscopic Constant
• Radiation Thermometry and Calibration
• Industrial Platinum Resistance Thermometer Tables
• ITS-90 Reference Chart – Coefficient Naming
• Thermometer and Thermocouple Reference Chart
• ITS-90 Temperature Scale Chart
• Immersion Depth Chart – Dry Block Bath
• Essential Temperature Data
• LabVIEW and Isotech Controllers
• Serial Communication Trouble Shooting Guide: Isocal-6, Dry Blocks and Baths
• Controller Protocol Details – Eurotherm Modbus and Ei-Bisynch

Software

• Cal Notepad Software; Control, Monitor and Log
• I-Cal Easy LOG
• I-cal EASY Automatic Calibration Software
• TTI-10 Driver
• milliK Firmware Update
• RBC Software
• Review Lite
• Setpoint Programmer Editor for ADVANCED Units 2026
• Setpoint Programmer Editor for ADVANCED Units
• Isotech ADVANCED Block Configuration Utility
• Icarus – ITS-90 Software for SPRTs
• Remote Display Control – operate the milliK via ethernet
• PRTCalc – free PRT / RTD Calculator (EN 60751)