K type of thermocouples are very simple and durable temperature sensors. Thermocouple come with different pairings of materials allowing for a very wide range of applications. The different compositions are standardized into thermocouple types. The different types are given letter names which are standardized across the industry. K type of thermocouples are manufactured in many different configurations for multitude of applications. Diameters, lengths, sheath material, lead lengths and sensor material are just a few of the variables that go into determining the style of thermocouple when manufactured. The main determining factors of what type thermocouple needs to be used in a application is temperature, environment, response time and accuracy. The junction of the thermocouple can be grounded, ungrounded or exposed. K type of thermocouples are easy to use, Thermocouples are the most popular temperature sensors. They are cheap, interchangeable, have standard connectors and can measure Thermocouples and RTD pt100 sensors a wide range of temperatures.