Pre-requisites
1. DH-TPC-HT2201 powered on.
2. DH-Thermal Software. Click here to download.
Video Instruction
Step by Step instruction
1. Go to Main Menu in handheld device by pressing arrow up 
button.
2. Go to System Settings, and then press the power 
button to enter the menu.
3. Press on the power button again to enter to USB Option.
4. Select PC Preview Mode, and then press on power button again to set.
5. You will be able to see your camera live view display in DH-Thermal Software.
6. On the handheld device, keep pressing back 
button to return to live view.