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BT-72

IR THERMAL IMAGER CAMERA

OPERATION MANUAL

          1.     SAFETY RULES

To ensure that the meter is used safely, follow all safety and operating instructions in 

this operation manual. If the meter is not used as described in this operation manual, 

the safety features of this meter might be impaired.

Do not look directly into the laser beam when the device is in use–permanent eye 

damage may result.

Use extreme caution when operating the laser.

Never point the device towards anyone’s eyes.

Keep out of reach of children.

          2.     INTERNATIONAL SYMBOLS

          3.     SPECIFICATIONS

Important information

see manual

Laser device. Avoid towards 

anyone’s eyes

Thermal Image Resolution

160 x 120

-20 ~ +500°C (-4 ~ +932°F)

Measurement Range

±2% of reading, or 2°C(4°F) whichever is greater

9Hz
51 x 63.5 deg
0.95 default – adjustable 0.1 to 1 step .01

Thermal Sensitivity

Accuracy (Tamb=20~26°C)

Frame Rate
Field of View
Emissivity Range

Focus free

Focus
LCD (inch)

2.8

          4.     THERMOMETER DESCRIPTIONS

5.     OPERATION

WARNING

The measurement range is for thermometers only. Users should choose proper probe 

types for different kinds of applications. Please make sure the target to be measured 

will not exceed the temperature range of the probe to avoid permanent damage to the 

thermocouple probe.
Caution: DO NOT use the AC power adapter over output 5V 2A to avoid the product 

damaged and failed to activate.

EMC/RFI: Readings may be affected if the unit is operated within radiofrequency 

electromagnetic field strength of approximately 3 volts per meter, but the instrument's 

performance will not be permanently affected.

1)

2)

3)


Visual Image Resolution

640 x 480

0.1°C(0.1°F)

LCD Type

Color

Image Storage

Depends on the capacity of the Micro SD card. (ex: stores 

up to 100,000 images, PNG format, for 16G Micro SD card)

Memory Type

Type Support micro SD card up to 32G. (Recommend to 

use the attached 16G micro SD card)

Spectral Range

8 ~ 14um

Interface

USB (Data Transfer), SD Card

Battery Type

3.7V Li-ion rechargeable battery

Battery Life (with backlit)

4 hours continuous use (Li-ion rechargeable battery, with 

backlight)

Dimensions

96 x 74 x 234mm (3.8 x 2.9 x 9.2 inch)

Weight

345 grams(12.17 oz) including the battery

(Fusion Mode - Rainbow)

IP Classification

IP54

5.2     Function Selection

Press Menu Key (6) to display functions, then press Color Palette Key (3) or 

Mode Key (4) to select the function. Under the function mode, press Unit Key 

(5) for setting and then press Trigger (11) to confirm it.

Cursor Measurement

The cursor shows the temperature of the object 

located in the middle of the screen.

3-level brightness

LOW

Fusion images by 3-level ratio of combining thermal and 

visual images.

View image: After selecting the image folder, press Trigger 

(11) to view images stored on the micro SD card.

Hide the cursor measurement.

Brightness

Medium

High

(        is the default mode)

Fusion Ratio

Delete image: After selecting the image folder or image 

file, press and hold Trigger (11) and TIPS "Do you want 

to delete it?" appears on the LCD. If you do not want 

to delete the file, select "NO" and press Trigger (11) to 

confirm it; if you want to delete the file, press Unit Key 

(5) to select "YES", then press Trigger (11) to confirm the 

deletion.

Note:

 If you want to manage images on the computer, 

please use the USB cable to connect the device and the 

computer.

File Management

5.1     Operation Selection

Press “Power key” (2) for 2 seconds and then release it, the startup 

process will complete in 15 seconds.

Power On

Press Mode Key (4) to switch the display mode. (Fusion-Thermal-Visual)

Note:

 Fusion is the default mode.

After power on, simply aim the thermal imager camera at the measure 

target with Lens (10) and get the images and temperature immediately. 

Please make sure the target area is within the field of view.

Note:

 There is a cursor on the screen. The cursor shows the temperature 

of the object located in the middle of the screen.

Display Mode

Save images

Taking 

images and 

temperature

Color palettes

°C/°F switch

Power off

Press Color Palette Key (3) to select the color palette (4 selectable color 

palettes) to view thermal images.

Press Unit Key (5) to convert temperature unit.
Press Power Key (2) for more than 3 sec. to power off the device. Auto 

power off time is around 1 minute. (Please see the “5.3 Setting” section to 

learn how to adjust the auto off time.)

Press Trigger (11) to save the images to the micro SD card.

Note:

 When "             " icon appears on the LCD, please check if there is 

a micro SD card or it is not properly installed in the micro SD card slot (7).

Ironbow

Rainbow

High contrast

Grayscale

5.3     Setting Selection

Set Date and Time

The default emissivity is 0.95, or select other default 

emissivity: 

Blackbody:1.0, Matt:0.95, Semi-

matt:0.8, Semi-glossy:0.6, Glossy:0.3

 Select 

Set 

E value

 to adjust the emissivity (0.1 to 1 step .01).

Emissivity

When the reading is outside the 

High Alarm (HAL)

  

or 

Lo Alarm (LAL)

 limit, the reading (HAL: red 

texts, LAL:blue texts) shown at the top left corner 

of screen will flash with two short beep sound 

constantly. Select 

HAL Temp

 or 

LAL Temp

 to adjust 

the limits or select ON/OFF to turn on/off the alert.( 

step 1)
Select 

Photo

: Save fusion/thermal/visual images in 

photo mode. (PNG and Excel formats)

Select 

Video

: Save fusion/thermal/visual images in 

video mode.

The default setting is “Auto off 1 min”, you can 

select other default value: 5, 10, 20 minutes or “No 

auto off”.

Manually power off the device by pressing Power 

Key (2) for 3 seconds.
The maximum distance is between the thermal 

imager camera and the target.

English/French/German/Dutch/Portuguese/Italian/

Spanish/Traditional Chinese/Simplified Chinese/

Japanese
Set the date and time in 

MM/DD/YYYY

 (month/day/

year) and 

HH/MM/SS

 (hour/minute/second) formats.

HAL Temp

Save Mode

Auto Off

Target Distance

Languages

LAL Temp

Setting

Note: If using SDHC memory card other than supplied, recommend do test before use.

         Typical full battery charging time 8hr. Do not charge overnight / without personnel

         surveillant. Recommend charging 12hr for first time use.

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