A chemical sensing device

A device (1) chemical detection for detecting an analyte, comprising a source (6) of light, at least one reagent (5) luminescent is capable of emitting light when irradiated by the light source, wherein laluminiscencia reagent luminescence can be modified by the analyte, thereby changing the decalor generation (7), change in heat generation is proportional to the analyte concentration, a transducer element (2) pyroelectric or piezoelectric and electrodes (3, 4), which is capable derealizar transduction change heat into an electrical signal, a detector (8) that is capable of converting the electric signal into an indication of the analyte concentration, and elque reagent (5 ) it is mounted on the transducer luminescent.