UNI-T UT309C Infrared Thermometer
The UNI-T UT309C Infrared Thermometer is a rugged professional infrared temperature meter that enables safe, non-contact measurement of surface temperatures from hot, moving, or hard-to-reach objects. Featuring a dual-laser targeting system, adjustable emissivity, and a 12:1 distance-to-spot ratio, it provides precise and reliable temperature readings for industrial inspections, electrical maintenance, automotive diagnostics, and HVAC servicing.
Designed for demanding work environments, the UT309C offers IP65 dust and water resistance, 3-meter drop protection, a large backlit LCD display, and multiple measurement modes including MAX, MIN, AVG, and DIF. Additional features such as high/low temperature alarms, data hold, trigger lock, and automatic power-off make it an ideal tool for engineers, technicians, and maintenance professionals. It is intended for measuring surface temperatures only and is not suitable for medical use.
Features:
- 3m drop proof, IP65.
- Large LED display with backlight.
- MAX/MIN/AVG/DIF mode.
- High/Low temperature alarm with LED indication.
- Lock measurement.
- Data hold/auto power off.
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.
- Conveyor system monitoring.
- Preventive maintenance.
- Laboratory surface temperature measurement.
- Appliance servicing.
Package Includes:
- 1 × UNI-T UT309C Infrared Thermometer.
- 1 × 9V (6F22) Battery.
- 1 × Carrying Case.
- 1 × User Manual.