New Digital Portable Colorimeter WR10 Color Reader Color Analyzer, Aperture: 8mm, CIELAB, Wavelength: 400nm-700nm, Accuracy â–³E<0.05, Color Simulation, PC Software, with White/Black Calibration Board
Sound Level Calibrator ND9A Portable Noise Calibration Meter, Frequency 1000Hz, Level 94 dB; 114 dB, Accuracy 0.5 dB
Digital Sound Level Calibrator ND9B Portable Noise Calibration Meter, Level 94 dB; 114 dB, Accuracy 0.3 dB
New Portable Simplified Colorimeter WR10QC Digital Color Reader, Apertures 8mm, Color Simulation, ΔE*ab<0.1, CIELAB, Wavelength: 400-700nm