... Keys rounded industrial metal keypad,access control keypad,Encryption pinpad,PCI pinpad,ATM pinpad,ATM keypad, Features· 16 keys encryption PIN ... : 0.4kg· Operation temperature: -10°C to +50°C, can be extended to -40°C to +80°C · Storage temperature: -40°C ... to +80°C · Relative humidity: 30% to 95% · Atmospheric pressure: 50kPa to 110kPaElectrical· Power input: +5V/DC· ...