For temperatures ranging from -50 to +150°C, a silicon temperature sensor is the cheapest, easiest, and most accurate solution. Thermocouples are best beyond silicon sensors. Thermistors and RTDs may seem accurate but measuring resistance accurately can be difficult. Digital sensors are a great solution depending on the LabJack and software used. Older devices require software that makes specific calls to the UD or U12 library, while other sensors require specific calls to the LJM, UD, or U12 library.