PRIOR TO USE
1. Pull battery door clip to open and install the battery according to instructions inside the battery compartment.
2. Press the trigger and the LCD display will show the reading and battery icon. Release trigger and the reading will
hold for 20 seconds.
3. To find a hot spot: aim the thermometer outside the area of interest, then scan across the area with up and down
motions until you locate the hot spot. Remember to turn on the laser for accurate measuring.
OPERATION
1. When taking a measurement point the thermometer towards the object to be measured and hold the trigger. The
object being tested should be larger than the spot calculated by the field of view diagram (below) and marked on
the appliance itself.
2. Distance and spot size: As the distance from the object increases, the spot size of the measuring area becomes
larger.
3. Field of view: Make sure the target is larger than the unit's spot size. The smaller the target the closer the
measurement distance. When accuracy is critical, make sure the target is at least twice the size of the spot size.
4. Emissivity: Most organic materials, painted or oxidized surfaces have an emissivity of 0.95 (preset in the unit).
Inaccurate readings will result from measuring shiny or polished metal surfaces. To compensate, cover the
surface to be measured with masking tape or flat black paint. Measure the tape or painted surface when the tape
or paint reaches the same temperature as the material underneath.
MAINTENANCE
Lens cleaning
: Use clean compressed air to blow off loose particles. Then use a soft brush to clean debris. Finally
clean with a wet cloth. Never use solvents to clean the lens.
Housing cleaning
: Clean with a damp sponge/cloth and mild detergent. Never submerge the appliance in water.
Spot size
distance
D:S ratio
