Ultra-low temperature Rox™

Temperature range: 5 mK to 40 K
Calibration accuracy: ±1.2 mK at 5 mK
Key applications: Dilution refrigerators

ULT Rox™ sensors are designed to achieve ultra-low temperatures down to 5 mK. These sensors are calibrated down to 5 mK and up to 40 K. The package is optimized for thermalization and minimizes optical radiation absorption, thereby reducing heat load and temperature rise from line-of-sight radiation emitted by higher-temperature objects such as a cold plate or surrounding shields. The package is also designed to minimize environmental noise, which is critical for 5 mK measurements. This sensor pairs with the 372 temperature controller to monitor and control temperature below 50 mK.