Abstract: The invention relates to a test sensor and a heater and thermocouple device for use in a test sensor and other assays, such as a diagnostic test sensor or strip and to a method of manufacturing a test sensor and a device and a method of conducting an assay using the test sensor or device. The invention relates to a test sensor comprising a heater and thermocouple device (100), the heater and thermocouple device (100) comprising: a substrate (10); on the substrate (10), a first layer (12) of a first conductive material of a first conductivity comprising: a first thermocouple element (14); a first connector track (16) connected to the first thermocouple element (14); a resistive heater element (20); and in which at least part of the first thermocouple element (14) is comprised of a portion of the resistive heater element (20); a second layer (22) of a second conductive material of a second conductivity comprising: a second thermocouple element (24) in contact with the first thermocouple element (14) (e.g.

Abstract: The present invention relates to a sensor device for measuring a level of an analyte of interest in a fluid, such as body fluid (for example blood, plasma, urine, interstitial fluid, saliva), a method of manufacturing a sensor device, a reagent film for use in a sensor, a method of manufacturing a reagent film for use in a sensor, a method of conducting an assay using a sensor, a method of calibrating a measurement from a sensor, a method of calibrating a batch of sensors, a meter for use with a sensor and a kit comprising a meter and a sensor according to the invention. A first aspect of the invention provides a sensor device for measuring a level of an analyte of interest In a fluid comprising: a flowpath for the fluid; on the flowpath, a reagent for the analyte of interest adjacent to an internal standard comprising a first predetermined amount of a first calibration analyte; and further wherein the reagent and the predetermined amount of a first calibration analyte are in dry form.

Abstract: The present invention relates to a sensor device for measuring a level of an analyte of interest in a fluid, such as body fluid (for example blood, plasma, urine, interstitial fluid, saliva), a method of manufacturing a sensor device, a reagent film for use in a sensor, a method of manufacturing a reagent film for use in a sensor, a method of conducting an assay using a sensor, a method of calibrating a measurement from a sensor, a method of calibrating a batch of sensors, a meter for use with a sensor and a kit comprising a meter and a sensor according to the invention. A first aspect of the invention provides a sensor device for measuring a level of an analyte of interest In a fluid comprising: a flowpath for the fluid; on the flowpath, a reagent for the analyte of interest adjacent to an internal standard comprising a first predetermined amount of a first calibration analyte; and further wherein the reagent and the predetermined amount of a first calibration analyte are in dry form.