Lateral flow strips designed to simultaneously detect two amplicons labelled with DIG/Biotin and/or FITC (or FAM)/Biotin, with the addition of a control line. PCRD is a Nucleic acid lateral flow immunoassay (NALFIA), suitable for use to detect amplification products generated when using a TwistAmp® nfo kit in combination with a TwistAmp® nfo probe and labelled amplification primer.