Many areas of research characterize samples under standard conditions and attempt to extrapolate these results to temperatures or an atmosphere far from ambient. Numerous non-ambient capabilities are available within MCL, these require careful planning and special hardware, but the data collected under non-ambient conditions can be invaluable. Variable temperature accessories are perhaps the most convenient and commonly used for non-ambient analysis. However, there are no accessories where the controller setpoint accurately reflects the sample temperature at the location being analyzed. This talk will highlight two methods (FTIR and XRD) where the MCL has developed accurate and precise temperature calibration protocol.