UNI-T UT309A Infrared Thermometer
The UNI-T UT309A Infrared Thermometer is a professional handheld temperature measurement instrument that quickly measures the surface temperature of objects without physical contact. It is ideal for inspecting energized electrical equipment, rotating machinery, HVAC systems, automotive components, and industrial equipment where contact measurement is difficult or unsafe. With a fast response time and precise laser targeting, it delivers reliable results for everyday maintenance and troubleshooting.
Built for demanding environments, the UT309A features a rugged IP65-rated enclosure with 3-meter drop resistance, making it suitable for field service and industrial applications. The thermometer includes a backlit LCD, MAX/MIN/AVG/DIFF measurement modes, high and low temperature alarms with LED indication, data hold, and automatic power-off. Its ergonomic design provides comfortable operation during extended inspections.
Features:
- Non-contact infrared temperature measurement.
- Single laser targeting.
- Large backlit LCD display.
- Fast measurement response.
- MAX, MIN, AVG, and DIF measurement modes.
- High and low temperature alarms.
- LED alarm indication.
- Data Hold function.
- Trigger lock for continuous measurement.
- Automatic power-off.
- Low battery indication.
- IP65 dust and water resistance.
- 3-meter drop-resistant design.
- Ergonomic handheld housing.
- Suitable for industrial and electrical inspections.
Specifications:
| Specifications | UT309A | UT309C | UT309E |
| Temperature range | -35°C~450°C | -35℃~650℃ | -35℃~850℃ |
| -31°F~842°F | -31℉~1202℉ | -31℉~1562℉ | |
| Accuracy | ≥0°C: ±1.8°C or ±1.8% | ||
| <0°C: ±(1.8°C+0.1°C/°C) | |||
| ≥32°F: ±3.6°F or ±1.8% | |||
| <32°F: ±(3.6°F+0.1°F/°F) | |||
| Resolution | 0.1°C/0.1°F | ||
| D:S ratio | 10:1 | 12:1 | 20:1 |
| Response time | 250ms (95% of reading) | ||
| Emissivity | 0.95 | 0.1~1 adjustable | 0.1~1 adjustable |
| Number of lasers | Single laser | Dual lasers | Dual lasers |
| Laser type | Class 2 | ||
| Laser power | <1mW | ||
| Laser wavelength | 630nm~670nm | ||
| Spectral response | 8μm~14μm | ||
| Features | |||
| °C/°F selection/Laser switch | ✔ | ||
| Display hold(s) | 8 | ||
| Data hold/Auto power off | ✔ | ||
| Low battery indication | ✔ | ||
| Lock measurement | ✔ | ||
| MAX/MIN/AVG/DIFF mode | ✔ | ||
| High alarm (red LED) | ✔ | ||
| Low alarm (blue LED) | ✔ | ||
| LCD backlight | ✔ | ||
| Tripod mounting hole | ✔ | ||
| General Characteristics | |||
| Power | 9V battery (6F22) | ||
| Display | 32mm x 29mm | ||
| Product color | Red and grey | ||
| Product net weight | 292g | ||
| Product size | 189mm x 118mm x 55mm | ||
| Standard accessories | PC software CD, carrying bag | ||
| Standard individual packing | Gift box, blister, English manual (UT309A/C only: German, French, Spanish optional) | ||
| Standard quantity per carton | 10pcs | ||
| Standard carton measurement | 430mm x 335mm x 330mm | ||
| Standard carton gross weight | 6.5kg | ||
Applications:
- Electrical panel inspection.
- HVAC system maintenance.
- Motor and bearing temperature monitoring.
- Industrial equipment inspection.
- Mechanical maintenance.
- Automotive diagnostics.
- Manufacturing quality control.
- Boiler and furnace inspection.
- Preventive maintenance.
- Laboratory surface temperature measurement.
- Appliance servicing.
Package Includes:
- 1 × UNI-T UT309A Infrared Thermometer.
- 1 × 9V (6F22) Battery.
- 1 × Carrying Bag.
- 1 × User Manual.