An in-line veterinary and animal fluid warming system that warms I.V. fluid to preset output temperature range 37c to 41.5 +/- 1c.  The system shuts off at 44c, LED displays error codes and audible alarm sounds.  The I.V. fluid is warmed via the VetOne disposable cartridge.  Four (4) independent sensors operate the heating system in the unit and monitor the I.V. fluid as it flows through the cartridge.