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 176H1 - FOUR-CHANNEL HUMIDITY AND TEMPERATURE DATA LOGGER

• Parallel temperature and humidity measurement
• External temperature and humidity probes for quick, accurate measurements
• Large easy to read backlit display
• Large data memory capable of storing 2,000,000 measurements

TESTO 317-2 - GAS LEAK DETECTOR WITH OPTICAL TREND DISPLAY

• Display of gas concentration via bar display
• Self-test of sensor after switching on
• Pitch of alarm rises along with gas concentration
• Battery monitoring with optical display

TESTO 440 - INDOOR COMFORT COMBOKIT WITH BLUETOOTH

• Accurate measurement results, thanks to air density compensation via integrated absolute pressure measurement
• Measuring range: 0 to 10,000 ppm, 14 to 122 °F, and 5 to 95% RH
• The Bluetooth handle makes it more convenient to carry out your measurements and guarantees less cable clutter in your case - it transmits readings to the testo 440, from up to 65 feet away
• Practical button on the handle - for storing individual readings
• Versatile - the universal handle can be connected to all probe heads, so you can take care of more applications, and use less equipment

TESTO 440 - VANE KIT WITH BLUETOOTH (&OSLASH; 3.9

• Easy storage and evaluation of measurement data - internal memory for up to 7,500 measurement protocols, which can be read via USB port and further processed as a CSV file on the computer (e.g. with Excel)
• Practical rear magnets for secure attachment of the measuring instrument to metal surfaces (e.g. ducts)
• Automatic detection of probes, e.g. vane probe
• Large, backlit color display

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 425 - HOT WIRE ANEMOMETER

• Min/Max/Average values make comparisons fast and easy
• Compact thermal sensor is ideal for in-duct readings
• Measures air velocity from 0 to 4000 FPM
• Bright backlit display provides easy viewing in any environment

TESTO 905-T1 - PENETRATION PROBE

• Professional industrial sensor (thermocouple Type K)
• High accuracy
• Easy readout of measurement value due to rotatable display
• Alarm message, reliable transmisstion of alarm value limits

TESTO 735-1 - 3-CHANNEL TEMPERATURE MEASURING INSTRUMENT

• Displays, saves, and prints delta T, min, max, and mean values
• Audible alarm when limit values are exceeded
• Protection class IP65

TESTO 417 KIT - ROTATING VANE ANEMOMETER

• Soft carrying case for worry-free transportation
• Air velocity, CFM, and temperature measurements
• Multi-point and timed average calculations for in-duct readings
• Bright backlit display provides easy viewing in any environment

TESTO 872 - THERMAL IMAGER WITH APP

• Highest image quality: IR resolution of 320 x 240 pixels, via integrated testo SuperResolution Technology 640 x 480 pixels
• Precise measurement: thermal sensitivity of 0.06°C
• Smart and wireless: use your mobile device with the free testo Thermography App and wirelessly transmit readings from the testo 770-3 clamp meter and the testo 605i humidity measuring instrument (both available separately)
• Innovative functions, such as testo ScaleAssist and testo ?-Assist for comparable, error-free thermal images