The Fuel Doctor FD-47 and WorldPro ProReducer are made by TKC Progress in Thailand for H. IMPEX. CO., LTD

Pick & Place

Reflow Oven

Optical Inspection

Electronic Test (does not appear to be FD-47 board)
Devices are placed in test jig connected to power supply
Voltage is adjusted below and above 11.47 volts
Bulk boxes will be shipped to USA for retail packaging.
Greetings from Thailand