Calibration wafers



Sigma Sensors introduces its’ Lab Series RTD Temperature  Calibration  Wafer to address the challenges presented to semiconductor labs, fabs and metrology departments.

Sigma Sensors’ temperature calibration wafers are designed with the customer in mind: ease of use, accuracy, durability and global service mobility.

Our systems are based on the COWBOY TEMPERATURE WAFER®, a highly resilient sandwich-type construction composed of two layers of Si wafer with embedded ISO17025 calibrated (optional) PT100 4-wire thin-film temperature sensors.

The thermal characterization wafer is standard shatter-free  and has a survival rate of >50% on the 1M drop test. It comes with a stainless steel carrier for ease of handling and added protection during transport. 

Wafers can be purchased freestanding for use with any meter – or as a complete, self-contained system. All materials are cleanroom safe, non-particle shedding, no outgassing and temperature resistant from -60°C to +260°C.

Every temperature sensor wafer shipped meets the basic advertised factory specifications. As for upgrades, we do offer both traceable, non-accredited calibration as well as ISO17025:2017 accredited calibration.

K2 Calibration Wafer

The Sigma Sensors K2 calibration wafer is the highest accuracy temperature wafer available on the market and offers performance <0.1K in the temperature range from -40 °C to +200 °C. It comes in 200/300 mm and has 13/17 sensors, respectively. It offers optional upgrade paths to -60 °C  and can be purchased either freestanding or as a complete system. Accuracy <0.1K

From $13,080.00

K1 Service Wafer

The Sigma Sensors K1 service wafer offers high reliability. It has been calibrated at 5 temperature calibration points and still offers superior performance to currently available and established temperature wafers. It comes in 200mm and 300mm and a selection of 9 and 13 sensors. It can be purchased either freestanding or as a complete system. Accuracy 0.1K

From $7,620.00

Thermal Chuck Calibration, Thermal calibration wafer

Cowboy Classic - temperature verification wafer

TekSense Cowboy Classic service wafer is the entry model temperature calibration wafer. Regardless of being an entry-level product, it still surpasses our competitors’ products in all technical specifications. It can be purchased either freestanding or as a complete system.

The base models offer 5 and 7 sensors on the 200mm configuration and 7 and 9 sensors on the 300mm wafers. The standard accuracy is <0.2K, and the base temperature range is 0 °C to 140 °C with optional upgrades to -40 °C and 150 °C, respectively. This wafer is sold as a complete system or freestanding.

From $3,600.00


  • 4 wire PT100 technology provides the most accurate results
  • Calibrated and verified at actual test temperatures -60C / +200C
  • ISO 17025: The Global Standard
  • ITS90: Traceability to International Standards from -80°C to +425°C
  • Confidence in measurement; accuracy <0.03K
  • AS/TS 16949: satisfy audit requirements
  • Transparent calibration processes
  • 5-17+ sensors
  • Cleanroom safe
  • Made for global mobility
  • Rugged and easy to use
  • 50% survival rate 1 Meter drop test
  • Shatter free options
  • Useable even when broken
  • Upgrade path to add additional sensors and or increase required accuracy
  • Modular – works with any Meter / DAQ
  • Complete systems or freestanding wafer
  • SIGMA IR – infrared wafers
  • Logger: Windows / Linux / IOS / Python operating systems
  • Open operating system, easy customization of data display
  • Save and export in pdf or excel
  • USB, LAN, WIFI and LTE logging
  • Solutions to fit all requirements and budgets
  • Convenient on-site, remote calibration and embedded engineer options
  • Global Coverage, monthly / yearly lease / maintenance contracts

Click link below to download company Information pdf:



We offer standard spec, batched, custom harnessed as well as calibrated PT100 and PT1000 sensors in both 2 wire and 4 wire configuration for sale. Calibrated sensors have inherently improved accuracy specifications over DIN spec sensors, as seen in the graph. The colored graphs depict the accuracy range as per class specification. Our standard range for sensors is -40 °C to +200 °C. Cold capability is offered to -80 °C and hot to +260 °C.

At 200 degrees Celsius these range from ±0.5 °C to ±2.5 °C compared to a calibrated sensor whose accuracy can be as low as ±0.03K k=2. This makes a SIGMA K2 sensor the sensor of choice when accuracy and traceability counts.




Please request an estimate for pricing.

Please request an estimate for pricing.

Please request an estimate for pricing.

Please request an estimate for pricing.

Please request an estimate for pricing.

Please request an estimate for pricing.