Model no: tms-m100kp Dimension: 100x100mm Description: Main features: V high-quality vandal proof ip65 stainless steel keypad with 16 keys(12 numeric keys and 4 functional keys) with etched and colored graphics V resistant to dirt, dust and liquid and very rugged vandal proof design V external 2 linesx 4 function keys for option (4 keys per function keypad) V customized layouts available V lifespan:>1 million operations per key V key trip:0.45mm V it can be encrypted with des and 3des V ps/2, usb and rs232 interface V key activation force:250g V easy integration Dimension: V front panel: 100x100mm Environment: V operating temperature: -10¡ãc to+50¡ãc V storage temperature: -30¡ãc to +80¡ãc V relative humidity: 30%¡«95% V keypad is watertight when mounted correctly Electrical data: V power supply voltage: dc 5 v ¡à5% V electric current: :10 ma V emc compliant. V en55022: 2006+a2:2010 V en55024: 1998+a1:2001+a2:2003 Each unit is packed in well-formatted foam and exported standard carton