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testo 830-T4 - Infrared Thermometer

testo-830-T4-infrared-thermometer
testo 830-T4
The testo 830-T4 Infrared Thermometer is your go-to tool for fast, precise, and non-contact surface temperature measurement in industrial and trade applications. Featuring advanced 30:1 optics, a high-resolution processor, and an intuitive gun-style design, it ensures accurate readings from a safe distance, even on small or moving objects.
  • High-precision accuracy – Advanced processor delivers fast and accurate results with 0.1°C resolution.
  • Long-range measurement – 30:1 optics allow precise readings from a distance.
  • Laser-guided targeting – Dual-point laser marking ensures pinpoint accuracy.
  • User-friendly design – Lightweight gun-style grip with backlit display for easy one-handed operation.
The testo 830-T4 Infrared Thermometer is designed for professionals who need fast, accurate, and contactless temperature readings from a safe distance. With its powerful 30:1 optics, it delivers high-precision measurements even on small objects at long range—making it ideal for manufacturing, maintenance, HVAC, and electrical inspections.

The dual laser spot marker ensures precision by clearly identifying the measurement area, while its high-speed processor allows rapid scans at two readings per second. Whether you need to monitor moving machinery, assess heating and cooling systems, or inspect electrical components, the testo 830-T4 provides the accuracy and efficiency you need.

For even greater flexibility, connect an optional external temperature probe to verify IR readings or measure air, liquid, semi-solid, and surface temperatures. Adjust the emissivity settings for different materials to ensure optimal accuracy, or use an optional emission tape for low-emissivity surfaces.

With its ergonomic, gun-style grip, bright backlit display, and intuitive controls, the testo 830-T4 is easy to use with one hand, even in challenging conditions. Its visual and acoustic alarms keep you informed if set temperature thresholds are exceeded, ensuring greater safety and efficiency in your workflow.

For professionals who demand precision, speed, and versatility, the testo 830-T4 Infrared Thermometer is the ultimate tool for non-contact temperature measurement.

Temperature - TC Type K (NiCr-Ni)

Measuring range
-50 to +500 °C
Accuracy
±0.5 °C + 0.5 % of mv
Resolution
0.1 °C
Measuring rate
1.75 s

Temperature - Infrared

Measuring range
-30 to +400 °C
Accuracy
±1 °C or ±1 % of mv (Remaining Range)
±2 °C (-30 to -20.1 °C)
±1.5 °C (-20 to 0 °C)
Measuring rate
0.5 s
Infrared resolution
0.1 °C

General technical data

Weight
200 g
Dimensions
190 x 75 x 38 mm
Operating temperature
-20 to +50 °C
Product-/housing material
ABS
Battery type
9V block battery
Battery life
15 h
Storage temperature
-40 to +70 °C
testo 830-T4 - Infrared Thermometer with 2-point laser sighting, 30:1 optic, adjustable limit values, alarm function, connection of external probes, incl. Batteries and calibration certificate.

Air probes

Surface probes

immersion/ penetration probes

Contact Us
Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

Opening hours

Monday-Thursday: 8:30am - 17:00pmFriday: 8:30am - 16:00pm
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