Refund Policy

  1. Returns and Refunds:
    • Complaints or claims regarding defective products must be made in writing within 15 days of delivery.
    • No products will be accepted for return without prior written authorization by MMS Design.
    • In cases of defective products, MMS Design’s liability is limited to either replacing the products or crediting the Buyer with the invoiced value, at MMS Design’s option.

Warranty Policy

  1. Warranty Coverage:
    • MMS Design honors the manufacturer’s warranty provided by Shanghai Huace Navigation Technology Ltd. (CHCNAV).
      • For GNSS receivers, a 2-year warranty from the date of delivery to the Buyer is provided.
      • For accessories, a 6-month warranty from the date of delivery to the Buyer is provided.
      • For batteries, a 3-month warranty from the date of delivery to the Buyer is provided.
      • The warranty ensures that the products conform to CHCNAV’s published specifications and are free from defects in material or workmanship as outlined in CHCNAV’s Limited Warranty.
  2. Warranty Claims:
    • The warranty periods are valid from the date of delivery:
      • Two years for GNSS receivers.
      • Six months for accessories.
      • Three months for batteries.
    • Any product defects should be reported in writing within the warranty period.
  3. Limitations of Liability:
    • The liability for defective products is limited to the remedies of replacement or credit as specified by the manufacturer.
    • MMS Design is not liable for any special, incidental, or consequential damages arising from the ownership, use, or operation of the product. This includes, but is not limited to, loss of profits, savings, or revenue, loss of use of the product or associated equipment, cost of capital, substitute equipment, facilities or services, third-party claims, or injury to property.
    • The liability is capped at 5% of the aggregate price of the products purchased and paid for by the Buyer.
    • Any legal action arising out of the sale of products must be commenced within 3 months after the cause of action has accrued.
  4. Exclusions:
    • The warranty does not cover damages or defects caused by misuse, neglect, or unauthorized modifications.
    • CHCNAV makes no warranties that the products are free from any claims of infringement of any patent, trademark, copyright, or other proprietary rights.