KEY POINTS

 • Non-contact sensor,for quick, safe measurements
 • Pistol design and laser for precise spotting
 • User selectable audible alarm limits
 • Models available that accept a K-type thermocouple
 • Adjustable emissivity (0.20 to 1.00)
 • Fast response time
 • Backlit display
 • A range of optics ratios to fit your needs

Testo’s infrared thermometers are perfect instruments for HVAC contractors to perform quick, accurate non-contact temperature measurements of a wide range of Surfaces. Thermographers will find them useful to verify the background temperatures when using thermal imaging devices. Testo offers a range of spot ratios to suit your needs. All instruments have adjustable emmisivity to provide accurate temperatures of any surface. Single and multi-spot lasers help clearly identify the surface area you are measuring.

FEATURES OF THE 845

 •  Switchable optics for distance (75:1)
 •  Close focus (0.04" spot from 3" )
 •  Intense cross laser sighting for true indication of measuring point
 •  3-line display (°F,min./max. values, alarm limit values, emissivity)
 •  Document on site with testo printer (optional)
 •  PC software for archiving and documenting data (included)
 •  Tripodadapter for online measurement via USB cable (included)
 •  Humidity module with temperature (option)
 •  Measure points as close as ¼ inch
 •  Ultra fast scan capability (100 msec) to survey any area quickly and accurately (reference accuracy ±1.5°F)
 •  90 test memory

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