testo 835-T1 infrared thermometer

The testo 835-T1 Infrared Thermometer is an essential tool for professionals needing safe, non-contact temperature measurement in HVAC, heating, and industrial applications. With a maximum temperature range of 600 °C, it is perfect for monitoring wall temperatures, troubleshooting heating and cooling systems, and ensuring product quality.

The 4-point laser marker clearly defines the measurement area, eliminating errors and ensuring precision. The 50:1 optics allow for accurate readings even from a distance, making it easy to measure hard-to-reach or small objects. The integrated emissivity table allows for correct calibration based on surface properties, optimising accuracy.

Additionally, the testo 835-T1 supports contact temperature measurements via an external probe, allowing for flexible thermal analysis. The device also includes adjustable threshold alarms, min/max value storage, and a hold function to make temperature recording easier.

With an intuitive user menu, backlit display, and a memory capacity of up to 200 readings, the testo 835-T1 is designed for efficiency and ease of use. The free-to-download "EasyClimate" software allows for quick and convenient data analysis.

Optional accessories, including a tripod and robust carry case, are available to customise the device for professional use. Whether for HVAC, quality control, or industrial applications, the testo 835-T1 ensures accurate and reliable temperature measurement with ease.

Measuring range	-50 to +600 °C
Accuracy	±(0.5 °C + 0.5 % of mv)
Resolution	0.1 °C

Measuring range

-50 to +600 °C

Accuracy

±(0.5 °C + 0.5 % of mv)

Resolution

0.1 °C

Measuring range	-30 to +600 °C
Accuracy	±2.5 °C (-30.0 to -20.1 °C) ±1.0 °C (0.0 to +99.9 °C) ±1 % of mv (Remaining Range) ±1.5 °C (-20.0 to -0.1 °C)
Infrared resolution	0.1 °C

Measuring range

-30 to +600 °C

Accuracy

±2.5 °C (-30.0 to -20.1 °C)

±1.0 °C (0.0 to +99.9 °C)

±1 % of mv (Remaining Range)

±1.5 °C (-20.0 to -0.1 °C)

Infrared resolution

0.1 °C

Weight	514 g
Dimensions	193 x 166 x 63 mm
Operating temperature	-20 to +50 °C
Product-/housing material	ABS + PC
Emissivity table	20 values
Laser spot	on / off
Standards	EN 61326-1:2006
Alarm function	audible; Optical
Auto-off backlight	30 s*
Auto-off instrument	120 s*
Battery type	3 batteries type AA (or USB operating with PC-Software)
Battery life	25 h (typical 25°C without laser and backlight) 10 h (typical 25°C without backlight)
Display type	Dot Matrix
Memory	200 measuring values
Storage temperature	-30 to +50 °C
*disabled for continuous measurement and USB connection

Weight

514 g

Dimensions

193 x 166 x 63 mm

Operating temperature

-20 to +50 °C

Product-/housing material

ABS + PC

Emissivity table

20 values

Laser spot

on / off