4
5
Product Structure
Infrared thermal
image sensor
Adjustable
focus lens
Eyepiece patch
Dioptric
adjustment knob
Capture
Indicator light
switch
Zoom in /
zoom out
Mode switch
Laser light
(Open the safety cover before use)
CVBS video output interface, USB interface
CVBS video output
interface
USB interface
（HT-A3）
（HT-A4）
Remark: HT-A4 product does not have laser light
Infrared thermal
image sensor
Adjustable
focus lens
Eyepiece
patch
Dioptric
adjustment knob
Capture
Indicator
light
Switch
Zoom in
Zoom out
Mode switch
