This USB-to-serial converter was designed to reprogram the Arduino compatible WST1200.
Features:

1. power indication LED
2. CH340G USB-to-serial converter
3. ICSP programming pins available
4. made for the WST1200
5. USB-mini connector
6. Arduino compatible
7. USB A to mini B cable included

Specifications:

1. dimensions: 60 x 43 mm

datasheet_k1201_en.pdf

resistor_colour_code.pdf

module_diy_kit_guide.pdf