The primary difference between Type J and Type K thermocouples is the measuring range, and the sensitivity. Type K is the most common general-purpose thermocouple with a sensitivity of approximately 41 µV/°C.
A wide variety of probes are available in its −50°C to +900°C / -58°F to +1652°F range. Type K wire color standard is yellow (+) and red (-). Type J has a more restricted range of −50 to +400°C, but higher sensitivity of about 50 µV/°C. Type J wire color standard is white (+) and red (-).
Specifications
| Surface Probe | |||
|---|---|---|---|
| Type | Application | Temperature Range | Dimensions |
| K | Magnetic, for use on stationary metal surfaces | -50 to 250ºC -58 to 482ºF |
Probe Length: 1.7" (44 mm) Probe Width: 10 mm Max Cord Length: 45" |
