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
| Immersion & General Purpose Thermometer Probe | |||
|---|---|---|---|
| Type | Application | Temperature Range | Dimensions |
| J | Small | -50 to 300ºC -58 to 572ºF |
Handle Length: 4.5" (114 mm) Probe Length: 4" (102 mm) Probe Diam: 2 mm Cord Length: 40" |
