TECHKON SpectroDens includes the newest trend in print & packaging quality control. The Spot Colour Tone Value (SCTV) function, which is defined in ISO 20654:2017, makes the quality inspection for spot colors precise, easy and reliable. The Spot Colour Tone Value (SCTV) function provides two sections: SCTV for single tone value measurements and the SCTV print curve. The new function can be integrated into the instrument with the latest firmware update, available at