The Limited Warranty for the Phoenix Aircraft Monitor covers defects in materials and workmanship under normal use for the period of 1 year after the unit is received.  Airbly will repair or replace the unit if it is found defective due to materials or workmanship under normal use and maintenance.  The customer will be responsible for return shipping charges.  Please contact Airbly at 902-200-2510 or support@airbly.com with problems.