Terms of service
Last updated October 24, 2026.
These terms are between you and Signal Systems, Inc., 5724 Aldrich Ave S, Minneapolis, MN 55419 ("we", "us"). They cover your use of this website, your purchases from our online stores (TimeClocksUSA.com, TimeCardsUSA.com and TimeClockWorld.com), and subscriptions to Continuum, our time and attendance service. By using our websites, placing an order or subscribing, you agree to them. If your business has a signed agreement with us for Continuum, that agreement governs wherever it differs from these terms.
Using our websites
You may use our websites to learn about our products and services, buy from our stores, subscribe to Continuum and get in touch with us. Please do not misuse them, for example by trying to get around their security, overloading them, or copying their content in bulk. The information on our websites is provided for general information; we work to keep it accurate, but descriptions, compatibility notes, prices and availability can change, and errors can happen. Sending a "Book a demo" request creates no obligation for you or for us.
Purchases from our online stores
Orders. Your order is an offer to buy. The confirmation email we send after checkout confirms that we received it; we accept it when we ship it. We may limit quantities, or decline or cancel an order, for example if an item is unavailable, a price or description was wrong, or we suspect fraud. If we cancel an order after you have been charged, we refund the full amount.
Prices and payment. Prices are in U.S. dollars. You pay at checkout, where payments are processed by Stripe. Shipping and any sales tax are added at checkout.
Shipping. We ship to addresses in the United States by ground service. Title and risk of loss pass to you when we hand your order to the carrier; claims for damage in transit are filed with the carrier, and we will help.
Returns. Returns, exchanges and refunds follow the return policy on the store you bought from, including its restocking fee and the Return Material Authorization (RMA) number you need before sending anything back. Each store's shipping and return policies, and its own terms, are on that store's website.
Warranties. Product warranties are provided by the manufacturer, or as stated on the product page, including any extended warranty you buy.
Continuum subscriptions
The service. Continuum is a cloud-based time and attendance service. It calculates timesheets under the pay rules, policies and schedules your business sets up. The hours it records are the record; the rates and amounts it shows are estimates. Continuum is not payroll software: your business remains responsible for reviewing results, for payroll, and for meeting wage-and-hour and record-keeping laws.
Your account. You are responsible for your account, for the people you give access to, and for keeping passwords and PINs private. Tell us right away if you think your account has been used without permission.
Billing and automatic renewal. Subscriptions are billed in advance for the plan and billing period you choose, and payments are processed by Stripe. Your subscription renews automatically at the end of each billing period, and the payment method on file is charged for the next period, until you cancel. Sales tax is added where it applies.
Cancelling. You can cancel at any time, either from the subscription management link we provide or by contacting us. Cancellation takes effect at the end of your current billing period; Continuum stays available until then, and you are not charged again.
Refunds. Subscription fees are not refundable, and we do not give refunds or credits for partial billing periods or unused time, except where the law requires it. If we end your subscription without cause, we refund the unused part of any prepaid period.
Price changes. We may change subscription prices. We will tell you by email at least 30 days before a new price applies to you, and it takes effect at your next renewal; you can cancel before then.
Late or failed payments. If a payment fails, we will try again and let you know. If payment is still not received, we may suspend your access until the account is brought up to date.
Your data. The information your business puts into Continuum belongs to your business. We use it only to provide, support and secure the service, as described in our Privacy page. You can download your records with Continuum's reports at any time; please do so before your subscription ends.
Availability and changes. We work to keep Continuum available and reliable, but it may be unavailable at times, for example for maintenance. We may improve and change the service over time.
Disclaimer
Apart from the warranties stated above, and to the fullest extent the law allows, our websites, products and services are provided "as is", without any other warranties, express or implied, including warranties of merchantability and fitness for a particular purpose.
Limitation of liability
To the fullest extent the law allows, we are not liable for indirect, incidental or consequential damages, such as lost profits or lost data, and our total liability for any claim is limited to the amount you paid us for the order, or for Continuum in the 12 months before the claim, that the claim relates to.
Our names and content
Signal Systems, Continuum and our store names, their logos, and the text, images and design of our websites belong to Signal Systems, Inc. or to their respective owners. Other product names, model numbers and brands belong to their owners and are used only to identify products and the equipment they work with; their use does not imply endorsement.
Privacy
How we collect, use, share and protect information is described in our Privacy page.
Governing law
These terms are governed by the laws of the State of Minnesota.
Changes to these terms
We may update these terms from time to time. The date at the top shows when they last changed. The version in effect when you place an order applies to that order; for subscriptions, changes apply from your next billing period.
Questions
Email [email protected], call 1-800-872-6066, or write to Signal Systems, Inc., 5724 Aldrich Ave S, Minneapolis, MN 55419.