5
°C / °F Selection
Press Test button and Flash light button for 2 sec at the
same time for switching temperature unit °C/°F .
Distance & Spot Size
As the distance (D) from the object increases, the spot
size (S) of the area measured by the unit becomes larger.
Use the unit at around 30cm to get the best measurement
accuracy.
At longer distances, the target area shall be larger than
the distance divided by 8.
Please do not put the fingers on the housing for long
period of time and cross the “B line” to prevent from
thermo effect interference of measuring accuracy.
