Categories: Milwaukee

milwaukee M12 TD Thermal Detector User Manual

M12 TD Thermal Detector
User Manual

Remove the battery pack before starting any work on the machine.Press switch half — activate the laser Press switch full — take a picture

Battery voltage 12 V
Weight according to EPTA-Procedure 01/2003 (1.5 Ah) 463 g
Operating temperature range -10°C to +50 °C
Operating and storage humidity range (non-condensing) 10 % to 90 %
Storage temperature range without battery -25°C to +60 °C
Infrared (IR) resolution 102 x 77 pixels
Object temperature range -10°C to 330 °C
Thermal sensitivity (Noise Equivalent Temperature Difference (NETD) 0.1°C per 2n5 °C
Spatial resolution (Instantaneous Field of View IFOV) 3.0 mrad
Accuracy (whichever is greater) ±5°C / 5% @ 25° C
On-board adjustable emissivity (in increments of 0.01) 0.10 to 0.99
Spectral range 7.5 to 14 μm
Thermal Imaging
Field of view (FOV) 26.8° Horizontal x 35.4° Vertical
Focus method Fixed Focus
The minimum distance in focus 91.4 cm
Screen refresh 8 Hz
Maximum Power <1m W
WaveLength 630-670 nm
Class II
Laser Complies with 21CFR 1040.10 & 1040.11
Battery system Milwaukee M12
Image storage system SDHC Card 8 GB (32 GB max)
Data communication interface Mini USB
Display 2.4″ Color TFT-LCD

NOTE: Displayed readings < -10°C and > 330°C are not specified. The LED floodlight does not affect thermal images.
WARNING! Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.
Save all warnings and instructions for future reference.


Do not stare into the beam. Do not point laser light at other persons.
Do not view directly into a beam with optical instruments (binocular, telescope).
Do not point a laser at reflective surfaces.
Avoid exposure to laser radiation. The laser may emit hazardous radiation.
Avoid dangerous environments. Do not use it in the rain, snow, damp or wet locations. Do not use in the presence of explosive atmospheres (gaseous fumes, dust or flammable materials) because sparks may be generated when inserting or removing the battery pack, possibly causing a fire.


Do not try to replace the battery pack if the surface of the instrument is wet.
Disconnect all the cords and cables from the object under the test and power of the instrument before removing or inserting the battery pack.
Do not dispose of used battery packs in the household refuse or by burning them. Milwaukee Distributors offer to retrieve old batteries to protect our environment.
Do not store the battery pack together with metal objects (short circuit risk).
Use only System M12 chargers for charging System M12 battery packs. Do not use battery packs from other systems.
Battery acid may leak from damaged batteries under extreme load or extreme temperatures. In case of contact with the battery, acid washes it off immediately with soap and water. In case of eye contact rinse thoroughly for at least 10 minutes and immediately seek medical attention.
This appliance is not intended to be used or cleaned by persons with reduced physical, sensory or mental capabilities, or lack of experience or knowledge unless they have been given instructions concerning the safe use of the appliance by a person legally responsible for their safety. They should be supervised whilst using the appliance. Children shall not use, clean, or play with this appliance, which when not in use should be secured out of their reach.


The Thermal Imager can be used for taking thermal images. The recordings can be saved as images on the memory card.
Do not use this product in any other way as stated for normal use.


Thermal Imager is an ultra-rugged, hand-held battery-powered tool that takes thermal pictures, called “thermal images.” Thermal images reveal different temperatures as different colors. A bright color display shows an image of hot and cold spots and temperature gradients in-between. The temperature of the object in the center target is shown at the top of the thermal image. Information about color palette settings for the image area at the bottom of the image.
You can optionally load the thermal images onto a computer to prepare a report later. The Thermal Imager and its supplied PC software satisfy the requirements of industrial electricians and technicians new to thermal imaging, as well as expert professional thermographers.
The MILWAUKEE Thermal Imager Report Software is available for download at Refer to the Thermal Imager Report software manual PDF for training.



  1. LED work light ON
  2. Target temperature
  3. Temperature crosshair
  4. Battery charge indicator
  5. HOT/COLD indicators ON/OFF
  6. HOT indicator (red)
  7. Palette bar
  8. COLD indicator (blue)


To preserve battery life, the Thermal Imager goes into Sleep Mode after 5 minutes of no activity. Sleep Mode maintains a ready-to-go, warmed-up condition, but uses little battery power. To reactivate the tool, pull the trigger or press any button. After another 15 minutes of no activity, the Thermal Imager turns itself completely off. Press the power button to turn the tool back on.
A Fuel Gauge on the Thermal Imager display shows the capacity remaining in the battery. When 10% of the charge remains, the Fuel Gauge blinks on and off. This is the time to replace the battery with a charged one or charge the battery as soon as you can. When no charge remains, a Low-Battery message appears on the display for 3 seconds. Then the Thermal Imager shuts itself off.
The fuel gauge is displayed in the upper right corner of the LCD while the tool is on.

Battery packs that have not been used for some time should be recharged before use.
Temperatures in excess of 50°C (122°F) reduce the performance of the battery pack. Avoid extended exposure to heat or sunshine (risk of overheating).


The first time the Thermal Imager is turned on, you are required to select the Language, Time, and Date.
See Basic Settings for more information.


To set up the Thermal Imager to your personal preferences, turn on the tool and press the Settings button .
Use the arrow ▲▼◄► buttons and OK button to toggle and select the desired settings.

LASER Turn the laser guides ON/OFF
CROSSHAIR Turn the crosshair ON/OFF
EMISSIVITY Select the Emissivity of the target (see “Selecting the Emissivity”)
UNITS Select Fahrenheit (F°) or Celsius (C°)
TIME Set the time
DATE Set the date
FORMAT Select the Time and Date formats
LANGUAGE Select the display language
DELETE ALL Delete all images on the SDHC card
FACTORY RESET Return Thermal Imager to original factory settings
SYSTEM INFO Display system information


Select the material or emissivity level in Settings.

  1. Press the Settings button.
  2. Use the arrow ▲▼ buttons to select EMISSIVITY.
  3. Press OK.
  4. Emissivity can be set by ratio or material. Use the arrow ◄► buttons to select the ratio column or the material column. Then, use the arrow ▲▼ buttons to select the desired ratio of the material.
  5. Press OK.

This setting tells the Thermal Imager what surface material it is measuring. This is important because setting the right emissivity has a significant effect on the accuracy of temperature readings.
See the following table for a list of the materials in the Thermal Imager Emissivity menu and their corresponding emissivity ratios.

BRICK 0.83
IRON 0.7
PAINT 0.93
SAND 0.9
SOIL 0.92
WATER 0.93
WOOD 0.94

Emissivity is the ratio of a target surface’s infrared output (radiance) to that of a blackbody at the same temperature. A blackbody is a theoretical perfect radiator of infrared radiation (IR).
What this means is you can set the sensitivity of the Thermal Imager to determine the true temperature of an object, no matter what its IR radiation characteristics are. The poorest radiators (surfaces with the lowest emissivity ratios) need the most correction. These materials are things like shiny metal and glass.
When you have a low-emissivity surface that you need a very accurate temperature reading from, placing black electrical tape or even painting it with flat-black paint is very effective. Black electrical tape and flat-black painted surfaces have an emissivity ratio of 0.95.
To minimize the risk of electric shock, burn or fire, never apply electrical tape or paint to an electrically live surface. Always check to ensure the power has been turned off before touching a surface.


Use the emissivity settings, palette selection, and HOT/COLD indicators to optimize your thermal images to your needs.


Select one of three color palettes to suit your needs.
Turn the tool on, then use the arrow ◄► buttons to step through the palettes.

RAINBOW Shows a very wide range of temperatures
IRON-BOW Useful for revealing small temperature differences
HIGH CONTRAST Shows the most detail


To turn the HOT COLD Indicator marks on or off while taking a temperature measurement, press the OK button during live view. Red (hot) and blue (cold) target marks locate the highest and lowest temperatures in the display area.


  1. Insert a battery pack and turn on the tool.
  2. Point the tool at the target. The Target Temperature is displayed at the top of the screen.
  3. To activate the laser guides, pull the trigger softly (less than halfway). See “83:1 Distance to Spot Ratio”.
  4. Turn the HOT COLD indicator marks on or off, or toggle through the different palettes to get the desired image on the display.
  5. The center temperature is affected by the material of the target and can be adjusted by changing the Emissivity. See “Selecting the Emissivity”.


Use the lasers to frame up the target area. The lasers correlate to the temperature crosshair on the display. Lasers are accurate to 76 mm @ 1,30 m. The target temperature is taken in between the laser indicators and sized according to the following chart.

NOTE: A quick change in temperature (>12°C) can affect the meter’s readings. Always allow the meter to reach its stable operating temperature after startup and before use (5 to 30 minutes, depending on the environment).


An SDHC card must be installed for the Thermal Imager to save images and data. If no SDHC card is installed, the error message “NO SD CARD” is displayed.

  1. Use the steps under the “Taking a Temperature Measurement” section to frame the desired image on the display.
  2. The Target Temperature, color palette, and any displayed marks will be captured in the image.
  3. Pull the trigger fully to take the picture.
  4. To save the image, press the OK button or pull the trigger again.
  5. To cancel the image, use the arrow ◄► buttons to select Cancel, then press the OK button.


To review the saved images on the display:

  1. Press the Image Review button.
  2. Use the arrow ◄► buttons to scroll through the images.
  3. To delete an image, press the OK button to select the displayed image, then use the arrow ◄► buttons to select Delete. Press the OK button again.
  4. Use the DELETE ALL function in Settings to batch delete the images.
  5. To return to live view, press the Image Review button again.


Always keep the camera lens clean.
Use only Milwaukee accessories and Milwaukee spare parts. Should components need to be replaced which have not been described, please contact one of our Milwaukee service agents (see our list of guarantee/service addresses).
If needed, an exploded view of the tool can be ordered. Please state Article No. as well as the machine type printed on the label and order the drawing at your local service agents.


Remove the battery pack before starting any work on the machine.
Please read the instructions carefully before starting the machine.
Do not stare into beam.
This product corresponds to the laser class 2 in accordance with IEC60825-1.

Documents / Resources

milwaukee M12 TD Thermal Detector [pdf] User Manual
M12 TD, Thermal Detector

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