| Parameters | FIR100SX-2A | FIR100SX-2B | FIR100SX-2C |
| Measuring Range | 300℃~1300℃ | 600℃~1800℃ | 1000℃~3000℃ |
| Display | 4 bit LED | ||
| Response Time | <100 ms | ||
| Measuring Accuracy | ±0.5% FS | ||
| Repeatability | ±1℃ | ||
| Emissivity | 0.10~1.00 adjustable step length 0.01 | ||
| Resolution | 1℃ | ||
| Distance Coefficient | 100:1 | ||
| High/Low Alarm | √ | √ | √ |
| Limit Alarm | √ | √ | √ |
| Ambient Temperature | optical probe 0℃~200℃ | ||
| master module -10℃~60℃ | |||
| Relative Humidity | <90% RH | ||
| Storage Temperature | -30℃~85℃ | ||
| Weight | master module 0.32Kg | ||
| optical probe 0.14Kg | |||
| Temperature Measurement Methods | TEM、MAX、AVG | ||
| Output | 4~20mA | ||
| Power | 24VDC,(±20%), 500mA | ||