Considerations and Safety Maintenance
2
3
Please read the user manual carefully in order to use the product
correctly:
Don’t use the product in explosive, flammable, damp or
corrosive environment.
The product contains precision electronic and sensitive optical
devices.Don’t impact and drop it to avoid damage.
Don’t dismantle and remodel the product without permission.
Please use damp cloth or weak soap to clean the enclosure of
the device.
Don’t use abradant, isopropanol or solvent to clean. The lens
and screen should be cleaned with use of professional optical
glasses.
When the product works, slight click will be given out every
several seconds. This is the normal phenomenon that the lens
captures the image.
Performance Index
Probe type
Resolution ratio
LCD resolution
Focus length
Eyepiece
Field angle
Digital zoom
Wavelength coverage
Frame rate of thermal
images
Color palette
Focusing mode
Image storage
Battery
USB
Working time
Product weight
440
g
Model
HT-A3
HT-A4
Product size
Work temperature
Storage temperature
384x288
infrared focal plane
720X540
Uncooled focal plane
Single eyepiece display (the dioptric
compensation is adjustable)
2X
；
4X
8μm-14μm
50Hz
Rainbow/Hot metal/white heat/black heat/
Yellow saturation/Bird watching mode.
Adjustable
BMP
Built-in rechargeable batteries
Micro USB
≥15
hours
186x69x68 mm
0
℃
- 45
℃
-20
℃
- 60
℃
19mm；25mm；35mm
19.5°x14.7°； 14.9°x11.2°； 10.7°x 8°
541.2
g
187.3x68x68.2
mm
