Oz., Clear. With readings of e10, e15, e20, e25, e80, e85 and e90. Test kit also tests for e85.
REV X E85 Super Tester - Reusable Gasoline Ethanol Testing 5 fl. oz., Clear
REV X E85 Tester + EBoost Ethanol Fuel Treatment Sample - #1 Ethanol Test Kit
REV-X E85 Testing Kit - Corn Field Edition - Reusable Ethanol Gasoline Test...
