Concentration drift means burned tools, rancid sumps, dermatitis complaints and scrapped parts. Coolant Sentinel replaces the clipboard: refractometer reading in, tracked concentration per machine out, flags before anything goes wrong.
concentration % = °Brix × factor. The factor comes from your coolant's technical data sheet — v1 of Coolant Sentinel ships with a looked-up factor database per product (Master Fluid, Blaser, Quaker Houghton, Fuchs, Castrol…) so nobody has to dig through PDFs at the sump.
Walk the floor, type the reading, done. Per-machine history with no spreadsheet.
Out-of-band or overdue sumps get flagged before the smell, the smoke, or the scrap.
Concentration history per machine, exportable. Useful when the coolant rep blames your water.
Built for shops running 5–50 machines. Pilot pricing for the first ten shops.