testo 830-T4 Infrared Thermometer
Product Descriptions
The testo 830 is a universally applicable infrared thermometer for non-contact measurement of surface temperatures in trade and industry. Thanks to a new processor, and therefore better resolution, even more precise measurements are now possible. Temperature can now be recorded to an accuracy of 0.1 °C. Thanks to the min./max. function, the limit values of the last measurement can be displayed and even better monitored.
The testo 830 infrared thermometer in brief: testo 830-T4 with 2-point laser measurement spot marking and 30:1 optics. This instrument measures the surface temperature even of smaller objects at a safe distance. External temperature probes can be connected.
| Technical data | |
| Measuring range Infrared | -30 to +400 °C |
| Type K (NiCr-Ni) | -50 to +500 °C |
| Accuracy ±1 digit Infrared | ±1,5 °C (-20 to 0 °C) |
| ±1,5 °C (-20 to 0 °C) | |
| ±1 °C or 1% of m.v. (remaining range) | |
| Type K (NiCr-Ni) | ±0.5 °C +0.5% of m.v. |
| Resolution | 0.1 °C |
| Measurement rate Infrared | 0.5 s |
| Type K (NiCr-Ni) | 1.75 s |
| Meas. spot marking | 2-point laser |
| Distance to measurement spot | 30:1 (typical at a distance of 0.7 m to the measurement object 24 mm @ 700 mm (90%) |
| Spectral range | 8 to 14 µm |
| Emissivity | Adjustable 0.1 to 1.0 |
| Storage temperature | -40 to +70 °C |
| Operating temperature | -20 to +50 °C |
| Battery type | 9V block battery |
| Battery life | 15 h |
| Weight | 200 g |
| Dimensions | 190 x 75 x 38 mm |
| Housing material | ABS |





































































