The Extech TG54-2™ and TG56-2™ represent the next generation of spot infrared thermometers, combining non-contact thermal measurement with the precision of contact-based thermocouple testing. Both models are designed for demanding industrial environments, featuring a high-contrast color display that makes it easy to navigate settings and read data simultaneously. The TG54-2™ is ideal for general-purpose industrial use with a 20:1 distance-to-spot ratio, while the TG56-2™ is tailored for high-heat applications, offering an expanded temperature range up to 1300 °C and a tighter 30:1 distance-to-spot ratio for measuring smaller targets from further away.
A standout feature of the TG-2 series is the inclusion of a Type K thermocouple input, allowing technicians to verify IR readings with a physical probe—an essential step when dealing with reflective surfaces where emissivity is difficult to determine. These units are built to survive harsh job sites, boasting a 3-meter drop test rating and a compact, ergonomic design. With adjustable emissivity and a built-in “High/Low” alarm system that provides visual alerts, these thermometers are perfect for identifying overheating electrical components, blocked steam traps, or failing bearings.
| Feature | TG54-2™ Specification | TG56-2™ Specification |
| Temperature Range | -30 °C to 850 °C | -30 °C to 1300 °C |
| Distance to Spot (D:S) | 20:1 | 30:1 |
| Accuracy | ±1 °C or 1% of reading | ±1 °C or 1% of reading |
| Emissivity | Adjustable (4 presets) | Adjustable (4 presets) |
| Targeting | Class II Laser | Class II Laser |
| Thermocouple Input | Type K | Type K |
| Display | Graphical Color LCD | Graphical Color LCD |
| Drop Test | 3 Meters | 3 Meters |
