Supplied as sensor-only version, Spark-DET-VIS is suitable for integration into custom electronics of portable and Internet-enabled sensing devices. Unit measures simple absorbance, fluorescence, and emissive color. It delivers full spectral measurements over visible wavelength range of 380–700 nm and provides optical resolution of 4.5–9.0 nm. With robust optoelectronics ensuring thermal stability over -10 to 60°C operating range, sensor provides accurate analysis even in harsh environments.