When Electrotap started selling sensors almost 3 years ago, we initially offered all of our sensors in two versions: the full “polished” version, and a “project” version.

The project version came with no cable, no connector, no shrinkwrap, etc. It’s just the sensor and the conditioning circuit, at a lower price. This is great for people that want to solder their own wires onto the board, or do some other custom thing (or just save a few dollars).

After a long hiatus, I’m happy to say that we are now able to bring them back! All the info is on the sensor info pages: http://electrotap.com/sensors/