DESO TPMS continually monitors tire pressure and temperature conditions, and warns the driver to take precautions so as to prevent dangerous accidents. Its main functions are as follows: High Pressure Warning: warn when tire pressure is too high (overpass the threshold) Low Pressure Warning: warn when tire pressure is too low High Temperature Warning: warn when tire temperature is too high Low Battery Warning: warn when transmitter battery cannot afford full display No Signal Warning: warn when sensor is damaged or lost Sudden Change Warning: warn when tire pressure changes abruptly Read Function: check the present pressure and temperature condition Set Function: set warning threshold and unit Wheel Rotation Function: operate when wheels are rotated Initializing Function: Default to factory setting