One of the properties of the volcanic lakes we are interested in measuring is the dissolved CO2. We looked at different options for CO2 sensors and decided to build our own based on a paper published by the Monterey Bay Aquarium Research Institute. We ordered all the parts last week, and some of the parts came in on friday.
we spent friday night soldering and were able to get most of the components together. Here are some pictures.
After a wild search for header pins, we ended up being just 6 pins short. Here are the final products: