wirelss TPMS with 4 internal sensors ,easy to install We'd like to thank you ... the max temperature .5. No necessary to interconvert the sensors when wrong display of the tires, only adjust receiver. ... TPMS COLOR BOX AND COMPONENTS Include: LCD display ,4 internal sensors , color box , wires , manual DISPLAY BUTTON AND ICON DESCRIPTION ... LCD tyre pressure monitoring system with 4 internal sensors