Perform temperature and moisture measurements on walls, monitor and check air conditioning and ventilation systems, service and inspect industrial systems, and ensure constantly high levels of quality in production processes. Ideal for a wide range of industrial and commercial applications.

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

Measure surface temperature / RH and check dew point / surface moisture
Timely detection of mold in buildings
Carry out quick and safe measurements on small / moving / hard to reach objects

State of the art technology and easy handling

4-point laser shows exact measuring zone, effectively preventing incorrect measurements
50:1 optics for excellent surface temperature measurements, even over greater distances (distance 16 ft = 4 in. 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 degrees of emission). Simply connect optional 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
Display min/max values
Backlit display

More products TESTO

TESTO 470 - TACHOMETER KIT

• Simple one-hand operation
• Measurement of rpm, speeds and lengths
• Storage of mean, max. and min. values as well as the last reading
• Includes accessories such as reflective markers, protective case and transport case

TESTO 312-3 - PRESSURE MEASURING INSTRUMENT UP TO 300/6000 HPA

• Load and tightness tests of gas pipes
• Pressure testing of water pipes using air
• Switchable measuring ranges with high resolution
• Alarm indicator for undershooting of freely adjustable limit values

TESTO 270 - COOKING OIL TESTER

• Improved ergonomic handle and rugged design
• Easy to clean under running water (IP65)
• Large, illuminated back-lit display and LED visual alarm indication
• Hold and auto-hold function

TESTO 330-1 LL FLUE GAS ANALYZER 0632-3306

• High-resolution colour display for the graphic representation of your measurement data
• Extended measurement menus - such as gas pipe testing - for a comprehensive analysis of your heating system
• Logger function for easy long-term recording of the measurement curve
• Graphic processing of measurement data

TESTO 816-1 - SOUND LEVEL METER

• Precise noise level measurements according to IEC?61672-1 Class?2 and ANSI?S1.4?Type?2
• Ideal for health and safety inspections / emission control
• Integrated memory for up to 31,000 readings / long term measuring possible
• PC software for data analysis / USB cable for data transfer

TESTO 810 - POCKET-SIZED TEMPERATURE MEASURING INSTRUMENT

• Infrared measurement with 1-point laser sighting and 6:1 optics ratio
• Display of differential temperature, such as between a window and air
• Hold function and min./max. values
• Display illumination

TESTO - MINI THERMOMETER

• Adjustable min./max. alarm
• Permanently connected probe
• With clip for set-up, wall mounting or attachment
• Measuring range: -50 to 150 °C

TESTO 645 - HUMIDITY MEASURING INSTRUMENT FOR INDUSTRY

• High-precision humidity measurement up to ± 1% RH
• Internal reading memory (3,000 readings)
• Convenient data evaluation via optional PC software
• Possibility of attaching a really wide range of optional probes thanks to a large accessory portfolio

TESTO 440 - AIR VELOCITY AND IAQ MEASURING INSTRUMENT

• Intuitive: Clearly structured measurement menus for volume flow, degree of turbulence, heating/cooling output, mold detection, and long-term measurement, such as CO2
• Wireless: Optional Bluetooth probes for extra convenience when measuring, and less cable clutter in your instrument's case (probes sold separately)
• Clear Overview: Large graphic display with parallel display of 3 readings
• Reliable: Internal memory for data storage and USB port for data export

TESTO 605I - THERMO-HYGROMETER WIRELESS SMART PROBE

• Quickly and accurately measures relative humidity and temperature in rooms, ducts, and chambers
• Automatically calculates dew point and wet bulb temperature
• Small diameter probe is ideal for in-duct measurements
• For all HVAC/R technicians and contractors