Merck Millipore Sigma Handheld Reflectometer RQflex 20 **FOR PARTS**Merck Millipore Sigma Handheld Reflectometer RQflex 20 The RQflex 20 Reflectometer by Merck Millipore Sigma is a compact and user friendly device designed for semi quantitative analysis using Reflectoquant test strips. It is ideal for field and laboratory applications that require reliable water and food quality measurements. Key Features Model: RQflex 20 Measurement Method: Reflectometric analysis using test strips Display: Backlit LCD for easy data