Changing or Canceling Order

How to change or cancel an order you have placed with us

Order Status and Tracking

How to find out the status of your order and obtain the tracking associated with it

Request an Invoice

How to obtain an invoice from any previous purchases made with us.

Items Out of Stock

Why items are out of stock or on backorder and what it means

E-Mail Notifications

Order related notifications you may receive from us via e-mail

General Shipping Information

General shipping policies and procedures for all shipments

Shipping Issues

Shipping policies including damaged items, missing items, and undeliverable or refused packages

International Shipping

International shipping policies, procedures, and timeframes

Return Policy and Instructions

Terahertz Store return policies and procedures

Damaged Items

Information about what do when you receive a damaged product

Defective Items

Information about what do when you receive a defective product

Warranty

All OEM products are sold with the full manufacturer's warrantyplease consult the information enclosed with your packaging for terms and conditions.

Account Info

Learn how to create an account and what the benefits of having one are.

Security

Checkout Security and Fraud Prevention

Terms Account

Setting up a terms account for wholesale or bulk purchases

Wholesale or Bulk Purchases

How to apply for a wholesale account and receive bulk discounts

Order Processing

Processing timeframes, placing an order, and order processing notifications

Payment Methods

Review payment options available at checkout

Phone Orders

How to place an order over the phone

Sales Tax and Tax Exempt

Sales tax, tax exempt, international taxes and when they are applicable

Sales Policies

Complete list of store policies and procedures

Clearance / Discounts

Details regarding items put on clearance and current coupons or promotions

Contact Us

Click here if you have a question on a product we sell, a general order related question or just need to contact us.

Product Support

Help with technical product questions, warranty information and part replacement.

Holiday Shipping & Hours

Please be aware of our Holiday operating times and shipping windows