PCE Instruments WSB 1 Whiteness / Brightness Tester (Wb = R457)

Model # WSB 1

Ideally used on flat surfaces, the brightness tester / whiteness color meter features an easy-to-read liquid crystal display (LCD) screen.
The device determines the brightness level by measuring the intensity of the light reflection diffused on a scale of 100.
The level of brightness of an absolutely black surface is defined by the meter as 1.
Measures the whiteness degree of blue light (Wb = R457)

PCE-WSB 1 is a portable handheld battery-powered brightness tester or whiteness color meter used to measure the brightness level of paper, cardboard, cellulose, pulp, textiles, paint, enamel, plastic, porcelain, cement, concrete, building materials, chemicals, powders, talc, starch, flour, salt, detergents, cosmetics and other non-metal substances.
Ideally used on flat surfaces, the brightness tester / whiteness color meter features an easy-to-read liquid crystal display (LCD) screen.
The device determines the brightness level by measuring the intensity of the light reflection diffused on a scale of 100.
The level of brightness of an absolutely black surface is defined by the meter as 1.
Included with the meter are black, white and brilliance standards for DIY calibration as needed to ensure accurate, repeatable measurements are consistently obtained.
Measures the whiteness degree of blue light (Wb = R457)
Meets ISO 2470 and ISO 3688 standards
Compact, lightweight and user-friendly
Easy-to-read liquid crystal display (LCD) screen
Includes black, white and brilliance standards for DIY calibration
Resolution: 0.1
Repeat accuracy : ±0.1

Measuring range	0 … 100.0 (displays values up to 199.9)
Whiteness degree formula	Whiteness degree of blue light Wb = R457
Light source	Approximating A; simulating D65
Light measuring conditions	45/0
Display resolution	0.1
Display accuracy	± 0.1
Standards	ISO 2470; ISO 3688
Display	Liquid crystal display (LCD)
Measuring aperture	Diameter Ø 15 mm / 0.6″
Power supply	5 x 1.5 V AA batteries
Operating conditions	+5 … +35 °C / +41 … +95 °F; < 85 % RH
Dimensions	Approx. 235 x 75 x 65 mm / 9.25 x 2.9 x 2.5″
Weight	Approx. 500 g / 1.2 lbs