Are DS1921G iButtons delivered calibrated at a specific temperature? If yes which temperature?
The DS1921G is indeed factory calibrated using NIST traceable RTDs (Resistive Thermal Devices) with an accuracy of ±0.035°C over a range of -100°C to +200°C. Each DS1921G device undergoes an individual single point calibration (adjustment) at 25ºC but is later verified (no adjustment) for +/- 1ºC accuracy at -30°C, -5°C, +25°C, +45°C, and +70°C.
