testo 835-H1 - Infrared thermometer with surface moisture measurement

Order-Nr.  0560 8353

  • Measure temperature, surface moisture and dew point with only one device

  • Four-Point-Laser and 50:1 Optics for precise measurements even over long distances

  • Easy and comfortable to use: easy-to-follow menu guide

  • Saves up to 200 readings

Non-contact temperature and moisture measurements –with only one device. The testo 835-H1 infrared thermometer not only measures the temperature but has an intergrated moisture sensor that allows you to measure surface moisture too.

Rs  35,675.00
GST and accessories extra

Product Description

With testo 835-H1, you can perform temperature and surface moisture measurements on walls, monitor and check air conditioning and ventilation systems, service and inspect industrial system to ensure constant high levels of quality in production processes are maintained. The testo 835-H1 is an ideal all-round device for a wide range of industrial and commercial applications.

What the testo 835-H1 infrared thermometer and surface moisture meter can do

-  Measure the surface temperature and relative humidity and check the dew point and surface moisture
-  Help to detect mold in buildings before it’s too late
-  Carry out measurements on small, moving or hard-to-reach objects, accurately and safely
Benefit from state-of-the-art technology and easy handling
-  4-Point-Laser: shows the exact measuring zone, effectively preventing wrong measurements
-  50:1 optics that provide you with excellent surface temperature measurements even over greater distances (distance 5 m  = 10cm measurement spot)
-  Adjustable degree of emission for measuring a wide variety of different surfaces
-  Connectivity for temperature sensors: for additional contact measurements for materials with low degree of emission possible –simply connect your optionally available temperature sensor
-  Easy-to-use, easy-to-follow menu guide thanks to icons and joystick
-  Generate measuring points and save up to 200 measurements
-  Define individual alarm thresholds, acoustic and optical alarm
-  Show min/max values
-  Backlit display


Delivery Scope

testo 835-H1 infrared thermometer and surface moisture meter has a moisture measuring function and 4-Point laser marking, measurement data management, PC software, moisture module, batteries, calibration protocol.
Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +600 °C


±(0.5 °C + 0.5 % of mv)


0.1 °C

Temperature - Infrared

Measuring range

-30 to +600 °C


±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

Humidity - Capacitive

Measuring range

0 to 100 %RH


±2 %RH

±0.5 °C


0.1 °C

0.1 %RH

0.1 °Ctd

General technical data


193 x 166 x 63 mm

Operating temperature

-20 to +50 °C

Product-/housing material


Laser spot

on / off

Emissivity table

20 values


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


200 measuring values

Storage temperature

-30 to +50 °C


514 g

*disabled for continuous measurement and USB connection

Air probes

Rs  6,443.00
GST and accessories extra

Food probes

Rs  8,233.00
GST and accessories extra

Surface probes

Rs  5,369.00
GST and accessories extra
Rs  13,960.00
GST and accessories extra
Rs  16,823.00
GST and accessories extra
Magnetic probe (TC Type K)

Order Number: 0602 4892

Rs  18,613.00
GST and accessories extra
Rs  4,653.00
GST and accessories extra

immersion/ penetration probes

Rs  10,380.00
GST and accessories extra
Rs  4,534.00
GST and accessories extra
Rs  12,647.00
GST and accessories extra
Immersion tip, flexible, TC Type K

Order Number: 0602 5792

Rs  2,983.00
GST and accessories extra



Order Number: 0440 0950

Rs  1,874.00
GST and accessories extra
USB connection cable

Order Number: 0449 0047

Rs  2,148.00
GST and accessories extra
Rs  1,312.00
GST and accessories extra
Rs  7,794.00
GST and accessories extra


ISO calibration certificate/temperature

Order Number: 0520 0002

Rs  19,314.00
GST and accessories extra
ISO calibration certificate/temperature

Order Number: 0520 0401

Price on Request

Location of thermal bridges and mould formation

With the testo 835-H1, you can identify thermal bridges (places on walls, floors and ceilings where there is a greater outflow of heat than at points nearby, mainly due to structural defects) for early detection or identification of structural defects, energy loss and places where there is a risk of mould formation.

Advantages of the testo 835-H1:

  • Fast detection of thermal bridges by scanning the walls, even at great distances
  • Measurement of the dewpoint, dewpoint distance and aw value (surface moisture) to assess conditions of the room and wall
  • Saving the data for documentation and comparison with previous measurements in order to evaluate corrective measures

Product Brochures



  • 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.