Power supply: DC12V±10% Type of cards:EM or M1 Reading operation: Read the card serial number Colour: white or black Read Range:M1:4-8cm EM:5-15cm Communication interface:WG26、WG34、RS232、RS485、ABA Communication distance: WG:100m,RS232:10m,RS485:1000m Dimensions: 115mm×75mm×15mm Environmental temperature: 0℃~70℃