... Accuracy / Drift-free operation - 98.5% Linearity Supports multiple operating systems - Windows, Linux, Mac Light Transmission 80% to 90% Finger, gloved hand ... hardness: 3H per ASTM D3365 3H per JIS K5400 Supported Operating Systems MS-DOS, Windows 95/98/2000/CE/ME/2000NT ... , OS/2, MAC, Linux etc Sensor Thickness (Sensor plus glass) 0.95mm / 1.35mm ...