QiWei WSB-3Y and PNshar PN-48B compare

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Model selection comparator If you have any questions, please click below Service	QiWei WSB-3Y Whiteness instrument (desktop microcomputer fluorescent type) 2690.0 RMB China Detail	PNshar PN-48B Whiteness Tester In coming China Detail

Model comparison

Type	desktop	desktop
Whiteness	Blue light whiteness Fluorescence whiteness Background whiteness Fluorescent whitening amount Opacity
Measuring Range	0~200	0~200
Repeatability	≤0.2
Accuracy	0.1	0.1
Measurement aperture	f21 ~ 30mm	f21 ~ 30mm

Parameter comparison

Measurement range	0~199.9	1~160%
Whiteness formula	R457 blue light whiteness, fluorescent whiteness, background whiteness, fluorescent whitening amount, opacity
test condition	d/0
Display mode	LCD liquid crystal display	128 × 64 dot matrix LCD screen (Chinese and English menus)
Measurement aperture	Φ30mm
Resolution	0.1	0.1
Error of indication	≤±1
Zero drift	≤±0.1
Repeatability	≤0.2

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