testo 835-T1 - 4 point Infrared Thermometer

Order-Nr.  0560 8351

  • Reliable IR measurement up to 600 °C 

  • IR measurements from a safe distance

  • Memory for up to 200 readings; easy analysis with free-to-download software

  • 4-point-laser and 50:1 optics for precise measurements over greater distances 

The practical infrared thermometer testo 835-T1 offers maximum safety and precision when measuring the temperature of smaller objects from a medium distance.

Product Description

Overview

Get started in the field of intelligent infrared measuring technology. The practical infrared thermometer testo 835-T1 offers maximum safety and precision when measuring the temperature of smaller objects from a medium distance, e.g. monitoring wall temperature, troubleshooting in heating and air conditioning systems, or the quality control of industrially manufactured products.
  • The 4-point laser clearly indicates the measuring area and prevents incorrect measurements
  • The 50:1 optics allow you to carry out measurements from a long distance and still obtain excellent results (distance 5 m = 10 cm measuring spot)
  • The integrated degree of emission table enables you to select the correct degree of emission of the measured surface
  • The backlit display allows you to use your infrared thermometer in all lighting conditions
The testo 835-T1 also allows you to carry out contact temperature measurements. The thermometer is equipped with a connecting point for a wide range of optional temperature sensors. The temperature sensor can also be used to automatically measure the degree of emission of a particular surface. This makes it easier to carry out subsequent infrared measurements.

There is also a wide range of optional accessories - including a tripod and a robust carry case - that allow you to customize your testo 835-T1 infrared thermometer to suit your needs.

For easy analysis and easy use

The testo 835-T1 comes with an easy-to-follow menu, self-explanatory icons and a user-friendly joystick. Your infrared thermometer can be used to create different measuring sites or save up to 200 readings while additional features including min/max values, adjustable thresholds and visual and acoustic alarms which are triggered when thresholds have been exceeded make work more efficient and life easier. The free-to-download "EasyClimate " software provides you with a quick and convenient means of analyzing your measuring data.

 

Delivery Scope

testo 835-T1 - 4 point Infrared Thermometer, 4-point lasermarking, measurement data administration, incl. batteries and calibration protocol

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +600 °C

Accuracy

±(0.5 °C + 0.5 % of mv)

Resolution

0.1 °C

Temperature - Infrared

Measuring range

-30 to +600 °C

Accuracy

±2.5 °C (-30.0 to -20.1 °C)

±1.5 °C (-20.0 to -0.1 °C)

±1.0 °C (0.0 to +99.9 °C)

±1 % of mv (Remaining Range)

Infrared resolution

0.1 °C

General technical data

Dimensions

193 x 166 x 63 mm

Operating temperature

-20 to +50 °C

Housing

ABS + PC

Emissivity table

20 values

Laser spot

on / off

Standards

EN 61326-1:2006

Alarmsignal

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

Weight

514 g

*disabled for continuous measurement and USB connection

Air probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

200 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Food probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ²⁾

Reaction time

7 s

2) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +230 °C

Accuracy

Class 1 ²⁾

Reaction time

15 s

2) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Surface probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +130 °C

Accuracy

Class 2 ²⁾

Reaction time

5 s

2) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

0 to +300 °C

Accuracy

Class 2 *

Reaction time

5 s

* According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +300 °C

Accuracy

Class 2 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

20 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +300 °C

hort-term to 500°C

Accuracy

Class 2 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

30 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +250 °C

Accuracy

Class 2 ¹⁾

Reaction time

t99 = 3 s (t3)

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +130 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +100 °C , short-term up to +130 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +170 °C

Accuracy

Class 2 ¹⁾

Reaction time

150 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Magnetic probe (TC Type K)

Order Number: 0602 4892

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +400 °C

Accuracy

Class 2 ¹⁾

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +120 °C

Accuracy

Class 1 ¹⁾

Reaction time

90 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Thermocouples

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50.0 to +400.0 °C

Accuracy

Class 2 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

immersion/ penetration probes

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

2 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +400 °C

Accuracy

Class 2 ¹⁾

Reaction time

7 s

1) According to standard EN 60584-2, the accuracy of Class 2 refers to -40 to +1200 °C.

Temperature - TC Type K (NiCr-Ni)

Measuring range

-60 to +800 °C

Accuracy

Class 1 ¹⁾

Reaction time

3 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K), Class 2 to -40 to +1200 °C (Type K), Class 3 to -200 to +40 °C (Type K).

Temperature - TC Type K (NiCr-Ni)

Measuring range

-200 to +1000 °C

Accuracy

Class 1 ¹⁾

Reaction time

5 s

1) According to standard EN 60584-2, the accuracy of Class 1 refers to -40 to +1000 °C (Type K)

Checking the function of underfloor heating

Temperature measurement of underfloor heating when it is installed or when maintenance or servicing is being carried out. Ensuring the underfloor heating is functioning properly by measuring the temperature at various points on it.

Advantages of the testo 835-T1:

  • Fast, easy (non-contact) checking of underfloor heating
  • Fast saving and documentation of data for later report writing
  • Clear marking of the measuring range by 4-point laser

Checking switch cabinets, fuses and fitted cables

Temperature measurement of electrical installations when they are installed or when maintenance or servicing is being carried out. Ensuring the electrical components are functioning properly by measuring the temperature at various points on them.

Advantages of the testo 835-T1:

  • Fast, easy, non-contact checking of electrical components
  • Fast saving and documentation of data for later report writing
  • Clear marking of the measuring range by 4-point laser

Checking ventilation components

The testo 835-T1 is ideally suited for measuring the temperature of ventilation components, for instance at duct outlets and on ventilation ducts. Assessing the ventilation duct's insulation and ensuring the ventilation system is functioning properly by temperature measurement.

Advantages of the testo 835-T1:

  • Measuring of ducts and outlets at a great distance
  • Easy scanning of ducts
  • Fast saving of measuring values in the instrument
  • Comparison with previous measuring values to identify any changes

Surface temperature measurement on bearings and gear mechanisms

Non-contact surface temperature measurement on industrial production machines for preventive maintenance. Especially measurement of bearings and gear mechanisms to prevent superheating. Preventing production downtime due to machines failing as a result of superheating.

Advantages of the testo 835-T1:

  • Fast and precise measurement from a safe and long distance
  • Clear marking of the measuring range by 4-point laser
  • Possibility of monitoring and logging the temperature profile by long-term measurement (only in combination with EasyClimate PC software, a free download via testo.de)

Surface temperature measurement for quality control

Product quality assurance for various industrially manufactured products: e.g. in the production process to determine whether the required temperature has been reached for further processing of the product, or when cooling products.

Advantages of the testo 835-T1:

  • Fast and precise measurement from a safe and long distance
  • Integrated emission level table and automatic determination of the emission level enable a rapid selection of the right emission level for various surfaces
  • Clear marking of the measuring range by 4-point laser
  • Possibility of monitoring and logging the temperature profile by long-term measurement (only in combination with EasyClimate PC software, a free download via testo.de)

Measurement of heat distribution in radiators

The testo 835-T1 is ideally suited for measuring the temperature of radiators when they are installed or when maintenance or servicing is being carried out. Ensuring the radiator is functioning properly by measuring the temperature at various points on it.

Advantages of the testo 835-T1:

  • Fast, easy, non-contact checking of radiators
  • Fast saving and documentation of data for later report writing
  • Clear marking of the measuring range by 4-point laser

Product Brochures

Manuals

Software

  • PC-Software - Testo Easy-Climate for testo 835, testo 480  (V3.3 SP2, EXE, 98.072 KB) Software testo Easy-Climate for the testo 480 and the testo 835 (Single protocol or several protocols of the same type) If you have already installed Testo EasyClimate on your PC your existing software version will be updated automatically.(1) Please check if your instrument firmware is up-todate after running the update of EasyClimate. (2) This software supports the instrument testo 480. (3) For your own security we recommend a backup of your data before running an re-installation or update.