Infrared Thermo-Humidity Measu. – testo 835-H1

Model No: testo 835-H1Part No: 0560 8353

Testo 835-H1 infrared thermometer is the ideal professional tool for a wide variety of thermal applications for objects that are small, hard to reach and moving. Measurement of surface moisture with integrated moisture sensor.

  1. Measure safely and accurately
  2. 4-point laser shows the exact measuring range, preventing incorrect measurements
  3. Safe measurements from a long distance, thanks to 50:1 optics
  4. Integrated emissivity measurement for absolute measuring reliability
  5. Patented surface moisture measurement
  6. Convenient menu guidance with icons and joystick
  7. Measuring value and location memory, and data analysis on the PC with free PC software “EasyClimate“


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.

Technical Data

Temperature – TC Type K (NiCr-Ni)
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
Humidity – Capacitive (for testo 835-H1)
Measuring range 0 to 100 %RH
Accuracy ±2 %RH,±0.5 °C
Infrared resolution 0.1 °C,0.1 %RH,0.1 °Ctd
General technical data
Dimensions 193 x 166 x 63 mm
Operating temperature -20 to +50 °C
Product-/housing material ABS + PC
Laser spot on / off
Emissivity table 20 values
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
Weight 514 g



 Datasheet Download  Instruction Manual Download

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