Payments, Returns & Repairs

Paying by Credit Card

TSI currently accepts American Express, Visa and MasterCard. We do not support payment via PayPal currently. *Please note that some credit card are not accepted in some regions.

Paying by Purchase Order

TSI accepts qualified purchase order payments for some products and services.

A purchase order is an official company document and must contain the following:

• Purchase order number and Date
• Bill To company information
• Ship To company information
• Contact information (email preferred)
• Payment Terms agreed upon
• Shipping method and Inco Terms agreed upon
• TSI must be listed in the Remit To area along with TSI Address (below)
• TSI Material number(s)
• Purchase Quantity per line item
• Net price (List price less channel partner discount) per line item
• Quote number referenced if available
• Correct currency
• Tax-Exempt certification if applicable

TSI accepts purchase orders only from those customers with established terms. Payments for services are subject to finance approval and due upon receipt of invoice. Payments for purchase orders are due within thirty (30) days of receipt of the product. Payments received after that 30‐day period are subject to service fees. Please see the TSI Sales Terms and Conditions for complete details.

Return Policy

TSI charges a standard 20% restocking fee for returned goods. The return policy requires the following conditions:

• Pre-return authorization from a TSI sales or customer service member
• Return requestor purchased product directly from TSI
• Returned product has not been used and is in it’s original packaging
• The product is returned to TSI within 6 months of the initial ship date
• Dampers, flow stations, HVAC valves and any product associated with a special order cannot be returned to TSI for credit or refund under the returned goods policy and will only be replaced.

TSI accepts returned goods under the following conditions

• Receipt of an incorrect product
  • Free-of-charge (FOC) replacement order if less than 6 months
  • Contact a regional TSI office for a replacement order and the coordination of the return shipment
• Receipt of a defective product
  • Credit:  Free-of-charge replacement order if less than 6 months. (TSI retains the right to repair. Only in cases where the item is not repairable or repair failed will it be exchanged)
  • Free-of-charge repair/calibration service if older than 6 months
  • Contact a regional TSI office for an FOC replacement order or a free-of-charge return material authorization (RMA)
• Trade-In promotions
  • Trade-in credit will be given upon receipt of the returned instrument.

Note: Taking a trade-in credit prior to receipt of the trade-in instrument may result in a shipping delay of the order

• Product or service covered by warranty
  • Credit: Free-of-charge replacement order if less than 6 months
    Free-of-charge repair/calibration service if older than 6 months
  • Contact a regional TSI office for an FOC replacement order or an FOC return material authorization (RMA)

Calibration and Repair Services

Calibration and repair services exist for most TSI, Alnor and Airflow products. Identify the available services through the pricing catalog or through our website. Please register or login to start the service request process. 

Note: Returning instruments without a Service Request (RMA) number may result in delayed processing. Please complete the Online Service Request process first to prevent these inconveniences.

Online Service Request Process

Login or register to request service or calibration. Follow the step-by-step process to select your own service requirements from the available options and to include any special requirements, concerns or handling issues. Your request will be assigned a Service Request or RMA number.

Global service capabilities

• If you are a customer in Europe, Africa, or the Middle East, please contact us at tsiuk@tsi.com or tsigmbh@tsi.com. It may be possible to service your instrument in Europe, which may help reduce turnaround time and shipping costs.
• If you are a customer in the Asia Pacific region, please contact TSI at tsi-singapore@tsi.com. It may be possible to service your instrument in Singapore, which may help reduce turnaround time and shipping costs.