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General| Image Frequency | 9 Hz |
|---|---|
| Accuracy | ±2 °C or ±2 % of reading |
| Display Size | 3.5 inches |
| Bluetooth | Yes |
| WLAN | Yes |
| Protection Class | IP54 |
| Focus | Fixed focus |
| Display | LCD |
| Weight | 510 g |
| Dimensions | 219 x 96 x 95 mm |
| Operating Temperature | -15 to +50 °C |
| Storage Temperature | -30 to +60 °C |
| Thermal Sensitivity (NETD) | < 0.09 °C |
| Battery Life | 4 hours |
General safety instructions for operating and handling the thermal imager safely.
Safety guidelines for handling, charging, and storing batteries for the instrument.
Explanation of warning symbols (WARNING, CAUTION, ATTENTION) used in the manual.
Instructions for the proper disposal of batteries and the instrument according to regulations.
Regulations and stipulations governing the use of the wireless module in different countries.
Specifications related to infrared resolution, sensitivity, field of view, and spectral range.
Technical details for visual image output, including image size and focusing distance.
Details on the display type, resolution, available interfaces (WLAN, Bluetooth, USB), and color palettes.
Specifications for measuring range, accuracy, emissivity/reflected temperature adjustment, and measurement functions.
Information on imager equipment such as digital camera, fullscreen mode, file formats, and video streaming.
Details on image file formats, export options, and memory capacity for storing images.
Technical specifications for power supply, including battery type, operating time, and charging time.
Specifications for operating and storage temperatures, and humidity levels.
Physical characteristics of the instrument, including weight, dimensions, housing material, and protection class.
Information on relevant standards (EMC, RED), tests, and warranty terms.
Overview of the testo 871 thermal imager and its primary applications and areas of use.
Identification and function of the main operating elements and controls on the instrument.
Explanation of the various elements displayed on the instrument's screen, including status bar and readings.
Details on display elements like battery status, image display, scale, units, and emissivity settings.
Information on how the instrument is powered, including battery and mains unit operation, and charging.
Instructions for the initial setup and commissioning of the testo 871 thermal imager.
Procedure for turning the thermal imager on and off, including warm-up and zeroing.
Guide to navigating through the instrument's menu system using the joystick and OK button.
Explanation of the quick select button functionality and how to assign functions to it.
Instructions on how to use the quick select button once a function has been assigned to it.
Steps to activate and deactivate the WLAN connection for using the Testo Thermography App.
Instructions for using the Testo Thermography App with the thermal imager.
Detailed steps to establish a WLAN connection between the thermal imager and a smartphone/tablet.
Options for selecting the display mode (Second display, Remote) when using the Testo Thermography App.
How to access and manage saved images from the thermal imager using the app's gallery feature.
Specification that Bluetooth® 4.0 is required for establishing a connection with probes or meters.
Explanation of the icons used to indicate Bluetooth® connection status with humidity probes.
How the thermal imager behaves and displays readings when connected to a humidity probe.
Instructions on how to reset the instrument's settings back to their original factory defaults.
Recommended environmental and operational conditions for optimal thermography measurements.
Key camera settings like emissivity and reflected temperature for accurate temperature measurement.
Procedure for saving captured thermal images, including attached real images.
Guide to setting various measurement functions like single point, hotspot, differential temperature, and IFOV.
How to display, analyze, and delete saved images using the instrument's image gallery.
Instructions on how to analyze saved images using measurement functions like Hotspot and Coldspot.
Step-by-step guide on how to delete individual images from the instrument's memory.
How to set and adjust the thermal image scale for automatic or manual scaling and ScaleAssist.
Guide on using the ScaleAssist function to calculate a display-neutral scale based on temperatures.
How to set emissivity and reflected temperature for accurate thermal measurements, with material examples.
Steps to select the correct emissivity value for different materials from the instrument's list.
Instructions on how to set a custom emissivity value if the material is not in the predefined list.
Procedure for manually setting the reflected temperature (RTC) value for improved measurement accuracy.
How to use the ɛ-Assist function for automatic setting of emissivity and reflected temperature.
How to select and change the colour palette for the thermal image display.
Instructions on switching the display between infrared image and real image views.
How to activate special measurement modes like humidity, solar, or electrical measurement.
Guide to activating and configuring differential temperature calculations between measuring points.
Accessing and modifying various instrument configuration settings and preferences.
Details on configuring country settings (language), time/date, and temperature units.
How to adjust power-save options to manage display intensity and automatic switch-off time.
Explanation of the SuperResolution technology for improving image quality and resolution.
How to enable the function to save images simultaneously in JPEG format alongside BMT format.
Instructions for enabling or disabling WLAN and Bluetooth® connections on the instrument.
How to manually enter ambient temperature and humidity to correct measurement deviations.
Where to find instrument information such as serial number, firmware version, and legal details.
How to activate fullscreen mode to hide scale and quick select button indicators for a clearer view.
Procedure for resetting the image counter and important precautions regarding data overwriting.
How to reset all instrument settings to their original factory default values.
Instructions on how to format the instrument's memory and important backup recommendations.
Detailed steps for charging the rechargeable battery using the USB cable and mains unit.
Step-by-step guide for safely removing and replacing the rechargeable battery in the instrument.
Instructions for cleaning the instrument housing, lens, and display using appropriate methods.
Common questions and their possible causes or solutions for troubleshooting instrument issues.
List of available accessories and spare parts for the testo 871, including article numbers.
List of Testo product numbers for which this manual is applicable.
Material numbers associated with the listed Testo products.
Information on CE marking and EU/EFTA country declarations of conformity.
Details regarding compliance with Japanese regulations and certification, including R 209-J00157.
Indication of authorization status for Turkey.
Information on FCC IDs and warnings for the USA market.
Technical specifications for WLAN and Bluetooth® connectivity, including range and module company.
Information related to the Bluetooth SIG list, including QD ID and member company.
Safety information regarding the laser, including compliance and a warning not to stare into the beam.
Industry Canada warnings regarding RSS-Gen & RSS-247 compliance and operation conditions.
Information from the FCC regarding potential interference and compliance for Class B digital devices.
Important caution regarding modifications not approved by the responsible party and use of shielded cables.
FCC warning statement on device operation conditions and potential interference.
Cautionary notes on radio frequency radiation exposure limits and installation guidelines.
Warning against co-locating or operating the transmitter with any other antenna or transmitter.
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