Integrating analog sensors is relatively painless, at least compared to the more finicky
RS-232 sensors. But what happens when you've diligently followed the instructions yet fail to receiving data from your sensor? Watch our troubleshooting video to learn our methods for testing power and cables - two common spots where communications break down. And as a bonus, watch an excerpt from our 2020 Sea-Bird University where we teach you how to test your CTD's logging capabilities with a humble AA battery.