The RTM-1 digital reference thermometer is a benchtop device designed and manufactured by Gometrics to indicate temperature with high accuracy and extremely high long-term stability, giving it a level of reliability found only in sophisticated laboratory instruments.

The RTM-1 reference thermometer’s measurement circuitry is self-calibrating against an internal resistance standard, ensuring the stability required for reliable measurements.

The RTM-1 reference thermometer’s keypad allows input of the coefficients of the deviation function which, when read directly in °C, achieves an accuracy of 0.01 °C at any value in the calibrated range between -200 and +200 °C and 0.02 °C between +200 °C and +660 °C, stable for one year.