You are expected to contact the after-sale team to extend the warranty. Please understand that the extended warranty have terms and conditions which may not match the original terms and conditions. A new agreement or contract will be signed to make it effective.
As a trustworthy manufacturer, Rigao Electronics's been focusing on the quality of Printed Circuit Board. As one of Rigao's multiple product series, Printed Circuit Board series enjoy a relatively high recognition in the market. The product functions properly in an environment with a certain level of electromagnetic disturbance. It won't be easily affected by other devices. Rigao mainly produces Printed Circuit Board and also serves customers with high quality.
Rigao has been bearing the notion of ethics management in the mind. Get price!