Accutrend Plus uses specially designed superior quality test strips. The test strips contain: a yellow protective mesh, impregnated with a surfactant (application field) a glass fiber fleece that works as a separating layer for blood cells a reaction film in which the color formation takes place and a bar code on the reverse side, which is read by the meter to confirm test strip identity, i.e. the lot number on the test strip is congruent with the stored code