Patent ID: 8329012

Claim:
An oxidation-reduction potential test strip device, comprising: a substrate; a spacer layer interconnected to at least a portion of the substrate, wherein the spacer layer defines a sample chamber; a test strip overlay, wherein the test strip overlay is interconnected to at least a portion of the spacer layer; a first test lead supported by the substrate, the first test lead including: a first area within the sample chamber; a second area within a readout region; a second test lead supported by the substrate, the second test lead including: a first area within the sample chamber; a second area within the readout region; a reference cell, wherein the first test lead mirrors the second test lead; a reference lead, including; a first area in electrical contact with the reference cell; a second area within the readout region, wherein the first test lead, the second test lead, and the reference lead are accessible to a test device in the readout region when the test strip overlay is interconnected to the substrate, and wherein the first test lead, the second test lead, and the reference lead are on a common plane; a filter, wherein at least a portion of the filter overlaps at least a portion of each of the first area of the first test lead, the first area of the second test lead, and the first area of the reference lead, and wherein the filter forms a bridge; and an electrolytic gel, wherein the electrolytic gel is in contact with the reference cell, and wherein at least a portion of the first test lead, at least a portion of the second test lead, the reference cell, the electrolytic gel, at least a portion of the reference lead, and the bridge are between the substrate and the test strip overlay when the test strip overlay is interconnected to the substrate.