... 60mm/smotor voltage at 8.5VDC10,Printing Life:≥50Km11,Thermal head temperature detection: Via thermistor12,Paper detection: Via photo interrupter ... 13,Head working voltage:4.2~8.5VDC14,Logic voltage:2.7~ ... 2~8.5VDC16,Operating temperature:+5~450C17,Operating humidity:10%~90%RH18,Operating machine noise: 60dB(max)19:Mass:41.5g20,Outline ...