The Extech 42570 is a high-performance infrared thermometer designed for extreme-temperature industrial applications. Featuring a wide non-contact range up to 3992°F (2200°C), a 50:1 distance-to-spot ratio, and dual-laser targeting that converges at 50" to indicate the exact 1" measurement area, it ensures precision on small or distant targets. It also includes a Type K thermocouple input for contact measurements, USB data logging with PC software, and adjustable Hi/Lo audible alarms — making it ideal for metalworking, glass manufacturing, and predictive maintenance.
| IR Temperature Range | -58 to 3992 | °F |
|
|
-50 to 2200 | °C |
| Type K Range | -58 to 2498 | °F |
|
|
-50 to 1370 | °C |
| Accuracy (IR) | ±(1% of reading + 2°F/1°C) | — |
| Repeatability | ±0.5% or ±1.8°F/1°C | — |
| Resolution | 0.1 | °F/°C |
| Distance-to-Spot Ratio | 50:1 | — |
| Laser Convergence | 50" (127cm) → 1" spot | — |
| Emissivity | Adjustable 0.10 – 1.00 | — |
| Response Time | 100 | ms |
| Data Logging | USB with PC software | — |
| Memory | 100 manual readings | — |
| Display | White backlit LCD + bargraph | — |
| Dimensions | 8.0 x 6.1 x 2.0 | in (204x155x52mm) |
| Weight | 11.3 | oz (320g) |
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The Extech 42570 is a high-performance infrared thermometer designed for extreme-temperature industrial applications. Featuring a wide non-contact range up to 3992°F (2200°C), a 50:1 distance-to-spot ratio, and dual-laser targeting that converges at 50" to indicate the exact 1" measurement area, it ensures precision on small or distant targets. It also includes a Type K thermocouple input for contact measurements, USB data logging with PC software, and adjustable Hi/Lo audible alarms — making it ideal for metalworking, glass manufacturing, and predictive maintenance.
| IR Temperature Range | -58 to 3992 | °F |
|
|
-50 to 2200 | °C |
| Type K Range | -58 to 2498 | °F |
|
|
-50 to 1370 | °C |
| Accuracy (IR) | ±(1% of reading + 2°F/1°C) | — |
| Repeatability | ±0.5% or ±1.8°F/1°C | — |
| Resolution | 0.1 | °F/°C |
| Distance-to-Spot Ratio | 50:1 | — |
| Laser Convergence | 50" (127cm) → 1" spot | — |
| Emissivity | Adjustable 0.10 – 1.00 | — |
| Response Time | 100 | ms |
| Data Logging | USB with PC software | — |
| Memory | 100 manual readings | — |
| Display | White backlit LCD + bargraph | — |
| Dimensions | 8.0 x 6.1 x 2.0 | in (204x155x52mm) |
| Weight | 11.3 | oz (320g) |