Service mode:

1. Remote diagnosis service:

(1) Wissea provides free remote technical service support. Wissea can quickly and directly diagnose and troubleshoot the device through remote dial-in anytime if customers allow to accept remote services.

(2) Customers can call the service hotline 0755-26052292 for technical support and consultation.

2. Depot repair:

If the device has a major failure and cannot be solved by remote maintenance, customers can send it back to Wissea for repair.

Ways of system failure handling during the warranty period and the effective period of the maintenance contract:

1. Wissea provides one-year free warranty and system maintenance service for device hardware.

2. The maintenance personnel conducts the diagnosis of the preliminary fault cause according to the technical documents provided by Wissea, and handles it accordingly;

3. If the hardware device (including sensors) has a major failure during the warranty period (the device cannot work normally), customers should contact Wissea and Wissea will respond within 48 hours to provide emergency solutions to them and provide corresponding emergency hardware device to customers within 3 working days so that customers can resume business normally.

Customers should send the damaged device back to the Wissea for repair. After receiving the repaired device, they should return the emergency replacement equipment provided by Wissea. The cost of delivery and retrieval of the product to the company’s maintenance department or its authorized service point shall be shared between the customers and the company.

Ways of system failure handling during the non-warranty period and the period when two parties don’t sign the maintenance contract:

1. The maintenance personnel conducts the diagnosis of the preliminary fault cause and handles it accordingly;

2. If the failure cannot be processed, customers should notify the Wissea technical support personnel by telephone, and send the relevant inspection results defined in the System Emergency Guidance Manual to Wissea technical support engineers. Both parties will conduct fault diagnosis and troubleshooting by telephone or network; most of the software failures can be resolved by rebooting the device.

The following conditions are not covered by the free warranty:

1. Damage caused by improper use of customers, for example, unauthorized opening of the device, incorrect connectionof the power supply and improper environment (temperature range of the equipment environment: 5-40 degrees Celsius).

2. Damage caused by the non-Wissea personnel’s maintenance;

3. Damage caused by man-made damage or such natural disasters as floods, fires, typhoons and lightning strikes;

4. The free warranty period has expired.

After the warranty period, Party A and Party B may sign a separate maintenance contract.