Hardware interface  USB V1.1 
Take like principle   CMOS reader 
resolution   500 dpi with distortion<1% 
Scanning the area    13mm x 16mm (256 x 320 pixels)
size   121mm(L) x 63mm(W) x 38.5mm(H)
Image ripping speed   8 Frames /sec. 
Error accept rate     (FAR) 0.001% 
Error rejection rate   (FRR) 0.1% 
Power flow    Max Current < 150mA 
Operation temperature     0°C ~ 60°C 
Buttons life   1,000,000 Cycle Life 
Work platform   Win 98SE/Me/2000/XP (WinCE 3.0/4.1)

url

http://www.wison.com.tw/cht/WU1MS1.htm