Gravity: Analog Current Sensor 50A (AC/DC) V2

On this sensor module, the In and Out holes are not designed for soldering wires. They are meant for the current-carrying conductor to pass through the opening so the sensor can measure the magnetic field produced by the flowing current. You simply route the wire through the hole; there is no electrical contact with the board itself. If you solder the wire into those holes, the sensor will not work correctly because it bypasses the intended non-contact measurement method. Paying attention to how components are designed to function is important in any technical setup. I’ve seen similar confusion when diagnosing HVAC issues, such as when AC cool air stopped and the real cause turned out to be an installation or flow problem rather than a failed part. For a practical troubleshooting example, this explanation is useful: https://calltrueblueair.com/blog/why-is-my-ac-blowing-hot-air/