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 Thermometer Probe | |||
|---|---|---|---|
| Type | Application | Temperature Range | Dimensions |
| K | Hard to access areas | -30 to 480ºC -22 to 896ºF | Handle Length: 5.5" (140 mm) Probe Length: 8" (203 mm) Probe Diam:13 mm Cord Length: 38" |
Comparison Chart
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