Trusted by Professionals

In addition to thousands of individual users, Wireless Tags are used by restaurants and hospitals around the world for monitoring freezer, property management companies and contractors for remote monitoring warehouses and buildings.

A number of research institutes and government organizations use Wireless Tag for environmental assessment and other projects. LG Lab in Baffalo Grove, IL use our products to test their appliance products. Our simple yet scalable architecture enable large scale deployment.

Our Repeat Customers Include

Warranty and Returns

If you are not happy with our products you can return them within 60 days for a refund or exchange using a pre-paid return shipping label provided by us (available for returns from USA). Please mark refund or exchange on the package. We will provide full refund of the price you paid for the product except the original shipping costs (return shipping is free) for items returned in original condition without intentional damage. Our products are covered by 1 year (3 year for Outdoor Probe category) limited warranty, during that time we offer exchange if our product malfunctions as the result of any manufacturing defects. You may contact us for technical support (for warranty exchange) or click here to automatically print a pre-paid return shipping label for refund within 60 days.

Malfunction due to reasons other than manufacturing defects include using the product outside its specified operating environment (see Specifications) such as submerging into water or exposing to condensing environment (for example using in outdoor environment products intended to be used indoor, or allowing condensation to form on the products), prolonged exposure to very high temperature, or dropping from a high place. These are not covered by this warranty.


Orders placed through are shipped within 3 business days after they were placed. We currently ship orders 2 days a week. Once your order is shipped you will receive an email or two with any tracking information available; you can check order status by logging into your account at We do not offer expedited processing or warehouse pickup of orders because orders are pick&packed in random order on the day they ship.

Privacy Policy

Information we collect and how we use it

We may collect the following types of information:

Email addresses you provide – When you sign up for a account, we ask you for your email address to 1) identify your account, and 2) to allow you to retrieve lost password. When you configure Tag Manager to send out notification emails, we ask you for the email address to deliver such notification email messages. We do not verify any email address you supply is valid or not; this allows you to use any text that resembles an email address to identify your account and to use our products and services.

Temperature, humidity, moisture and/or motion data collected by Wireless Sensor Tags you use – In order to generate your personal temperature graphs or event logs for your account, we store these information until you delete them from the app user interface. We associate these information with your account. Because we only collect email address (which does not have to be a valid one) for each account, the source and exact location of these information will not be individually identifiable.

Name, comment and/or picture for each sensor that you assign or provide – It is completely optional for you to assign name, comment or picture for each sensor tag to help you tell one sensor tag from another. You can permanently delete or alter the these information any time by using the mobile app or web browser interface.

Log information – When you access Cao Gadgets services via a browser, application or other client, our servers automatically record certain information. They include information such as your web request, your interaction with a service, Internet Protocol address, browser type, browser language, the date and time of your request and one or more cookies that may uniquely identify your browser or your account. We use this information to improve server performance and our other services.

User communications – When you send email or other communications to Cao Gadgets, we may retain those communications in order to process your inquiries, respond to your requests and improve our services. We may use your email address to communicate with you about our services.

If we use this information in a manner different than the purpose for which it was collected, then we will ask for your consent prior to such use.We processes personal information on our servers in the United States of America and in other countries. In some cases, we process personal information outside your own country.


We will collect personal identification information from Users only if they voluntarily submit such information to us. We will collect personal identification information from you only if you voluntarily submit such information to us. You can always refuse to supply personally identification information, In such case, certain services such as accessing your tag list from a web browser, or retrieving lost password through email may not be available. Most browsers are initially set up to accept cookies, but you can reset your browser to refuse all cookies or to indicate when a cookie is being sent. However, some features and services may not function properly if your cookies are disabled.

How we protect your information

We adopt appropriate data collection, storage and processing practices and security measures to protect against unauthorized access, alteration, disclosure or destruction of your personal information, username, password, transaction information and data stored on our Site. We restrict access to personal information to our employees, contractors and agents who need to know that information in order to process it on our behalf. These individuals are bound by confidentiality obligations and may be subject to discipline, including termination and criminal prosecution, if they fail to meet these obligations.

Information sharing

We do not sell, trade, or rent Users personal identification information to others. We may share generic aggregated demographic information not linked to any personal identification information regarding visitors and users with our business partners, trusted affiliates and advertisers for the purposes outlined above. If Cao Gadgets LLC becomes involved in a merger, acquisition, or any form of sale of some or all of its assets, we will ensure the confidentiality of any personal information involved in such transactions and provide notice before personal information is transferred and becomes subject to a different privacy policy.

Accessing and updating personal information

When you use Cao Gadgets services, we make good faith efforts to provide you with access to your personal information and either to correct this data if it is inaccurate or to delete such data at your request if it is not otherwise required to be retained by law or for legitimate business purposes. We ask individual users to identify themselves and the information requested to be accessed, corrected or removed before processing such requests, and we may decline to process requests that are unreasonably repetitive or systematic, require disproportionate technical effort, jeopardize the privacy of others, or would be extremely impractical (for instance, requests concerning information residing on backup tapes), or for which access is not otherwise required. In any case where we provide information access and correction, we perform this service free of charge, except if doing so would require a disproportionate effort. Because of the way we maintain certain services, after you delete your information, residual copies may take a period of time before they are deleted from our active servers and may remain in our backup systems.

Terms of Service

The manufacturer of this product does not guarantee the fitness of this product for any specific purpose. The functionality of this product, the accuracy, timeliness, or completeness of the information provided by each Wireless Sensor Tag, are affected by many factors including, but not limited to, magnetic interference in the environment, temperature, humidity, quality of your Internet connection, temporary outage of or our other servers, Google or Apple servers for push notification delivery, or the internet connection of your phone or PC. Therefore, do not rely on information provided by, or functionality of this product for any potentially mission-critical applications which may result in injury, death, or financial loss. You agree to use information provided by this product for convenience purpose only, and to always check its accuracy using other methods. The manufacturer of this product shall be liable only up to the sale price of this product for any loss caused by using this product. If you do not agree to the above terms of service, please promptly return this product within 60 days and receive a full refund of your purchase price less original shipping cost. Some of the features of this product, including real-time notification provided on iOS devices through Apple Push Notification Service and on Android devices through Firebase Messaging rely on these third parties’ services, and you are bound by these third parties’ terms of service by using these features.

Contact Us

Technical Support: (Requires login with your app login for creating a support ticket to obtain account specific technical support)
(866) 824-9684 (9AM-6PM Pacific Time)

Write Us:

CAO Gadgets LLC
50 Tesla
Irvine, CA 92618

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