Digital Infrared Thermometer, Easy Lasergrip Non-contact Laser Temperature Gun with Temperature Deviation Function IT06-B3(Blue)

Show temperature deviation
The temperature deviation is the difference between a previously established reference value and a temperature measurement. The display indicates the deviations as numeric values and displayed in color. An acoustic signal also sound.

Determine reference value
(1) Press the measure button and aim the laser pointer at the area of which you wish to use the temperature value as the reference. The temperature is indicated in the display.
(2) Whilst holding the measure button, press the °C / °F SET button to use the temperature as the reference value. This temperature is is indicated in the display next to "REF" as the reference display.

Select tolerance range
You can set the temperature deviation from the reference value as of which the device will respond with a visual and acoustic signal.
To do so, whilst the reference value appears in the display, press the button left or right to select the tolerance range.

Scan temperature deviation
(1) Select a reference temperature as described above.
(2) Press the measure button and aim the laser at area you wish to measure. The temperature is indicated in the display.
(3) Hold the measure button whilst scanning, and slowly and steadily move the laser dot across the surface you wish to measure.
The temperature deviations between the reference value and the measurement are indicated as follows:
Red display background with rapid tone series for the upper temperature threshold has been exceeded.
Green display background with no tone for within the temperature range setting.
Blue display with slow tone series for the value is below the lower threshold.