Test/Measure/Experiment

Boilermakers chalk, also known as soapstone, is primarily used for marking metal surfaces. It's a common tool in industries like welding, fabrication, and metalwork, allowing for precise and clear lines to be drawn on steel and other metals.

This is a very handy tool for testing USB devices and power supplies, checking load levels and debugging battery chargers and boost converters.

We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit