SENTINEL is a cost-effective, high-performance seismic recorder with a triaxial MEMS accelerometer, 1000 sps sampling, and low-noise (<18µg/√Hz). It features MiniSEED storage (32-256 GB), advanced triggering (STA/LTA, threshold), and GNSS time synchronization.
With LAN, WiFi, and optional 4G, it supports remote access and integrates with SeisComP3, Antelope, and Earthworm via SeedLink protocol. The rugged aluminum casing, 5-hour UPS backup, and optional seismic switch relays ensure reliable operation in the field.
$2.365,00
SENTINEL features an onboard MEMS triaxial accelerometer, capable of synchronous sampling up to 1000 sps at 20-bit resolution (24-bit for SENTINEL-X). It delivers a dynamic range of >85 dB (>110 dB for SENTINEL-X) and low self-noise (<18µg/√Hz), ensuring highly accurate seismic data acquisition.
With an integrated 32-256 GB memory bank, it supports long continuous recordings and event-based data storage in MiniSEED format. Sophisticated trigger algorithms (STA/LTA, threshold) help differentiate real seismic events from environmental vibrations.
An internal GNSS receiver ensures precise absolute time synchronization across networks. SENTINEL can be controlled locally via LAN/WiFi or remotely using an optional 4G modem, enabling seamless integration into standalone or MASTER-SLAVE monitoring networks. It is fully compatible with Triton and Atlas, making it ideal for near-field seismic monitoring where superior dynamics are required.
With SeedLink protocol support, SENTINEL integrates with industry-leading seismic analysis software, including SeisComP3, Antelope, and Earthworm.
Powered by an external 5-16V DC source, SENTINEL includes an internal LiPo battery (18650 standard) that provides 5 hours of backup power in case of outages. The optional HSPA modem is also backed up by the internal battery for continuous operation.
SENTINEL can be optionally equipped with three relay outputs, functioning as a seismic switch to shut down critical systems like elevators, pumps, gas valves, or activate alarms, sirens, and lights during seismic events.
Encased in anodized aluminum, the rugged and shock-resistant design makes it ideal for field applications. The adjustable mounting plate simplifies leveling for quick and precise deployment.
SENTINEL: Reliable, accurate, and built for advanced seismic monitoring applications.
| Weight | 1 lbs |
|---|---|
| Dimensions | 20 × 20 × 20 in |
Structural health monitoring is one of the main applications of SENTINEL, with tall buildings, where heavy oscillations excite the structure and the amplitude of physical signals is considerable, SENTINEL performs well even if its dynamic range cannot compete with that of TRITON’s.
In a scenario like this, the only high dynamic (and thus more expensive) accelerograph is placed on the ground floor, where the oscillations of the structure are negligible.
SENTINEL and TRITON can be interfaced and controlled using QUAKELOGIC’s Structural Health Monitoring software.
A real-time report of the building and a post-earthquake evaluation of the structural damage can be locally displayed or trasmitted remotely.
The good performance/price ratio makes SENTINEL the ideal choice when building a distributed system aimed at creating an array of seismic data.
Earthquake early warning (EEW) concept is the rapid detection of earthquakes and the alerting of people to shaking.
SENTINEL can detect the non-damaging P-waves and transmit the information about tremors to an alarm center or directly to predefined users before the most damaging S-waves arrive.
SENTINEL is currently used for an ongoing project with the INGV (National Institute of Geophysics and Volcanology) which is experimenting with AI algorithms to detect the earthquake autonomously and quickly.
SENTINEL would be an excelent solution for deactivating sensitive electronic devices when a seismic event is detected, closing gas valves or warning people.
Sentinel models available
Answer: Yes, SENTINEL may do both tasks in parallel. For event-triggering, threshold exceedance instead of STA/LTA is recommended for accelerometers.
Answer: The telemetry works through SeedLINK protocol, which holds data in its ring buffer whose size is by default 1GB (expandable): it corresponds to some days of continuous recording. When the telemetry goes down, the client may request data from the last packet received before the break and then recovered all the missing data. This is automatically handled by the SeedLINK client. Whether the telemetry is up or down, the device always stores data in a separate folder and the telemetry (SeedLINK) server detects it, and copies data in its ring buffer, ready to be sent on request.
Answer: This could be done in two ways. For example, if the 2 or more SENTINEL digitizers are in the same LAN segment, either SENTINEL could reach the trigger status and trigger all the other units with a broadcast message. If they are installed in different LAN segments (for example there is a gateway in the middle), this won’t work and we should install an additional module on a Linux machine that catches the alarms from the devices and implements a trigger voting algorithm.
Answer: MiniSEED, just like the continuous recording. But if we install the QUAKELOGIC Event Watchdog software to the remote server, the trigger files may be sent automatically to a remote server and exported in ASCII format, or the server may extract the event data from the continuous recording and perform the export. For example, this would be the best way to interact with a LABVIEW application.
Answer: The SENTINEL digitizer can communicate with the remote server (Linux Machine) through MQTT and SeedLINK. The Linux Machine takes care of storing all the continuous recordings from the SENTINEL devices and receives the trigger data through MQTT or just extracts it from the continuous buffer. At this point, data is still available in MiniSEED. Once we have a time window for an event, we may export it in ASCII.
Answer: The SENTINEL digitizer can be powered by a 12 V solar panel (>100 W). The system requires a solar panel, 12V backup battery and controller unit. QuakeLogic can provide all these auxiliary hardware including on-site installation.
Effective date: 16 May 2019
This web site (the “Site“) is owned and operated by QUAKELOGIC (“we“, “us” or “our“).The use of this Site and the content and information available on this Site (collectively the “Services“) shall be subject to acceptance of and compliance with the terms and conditions set forth in these terms of use (collectively, the “Terms of Use“) and elsewhere on this Site. The terms “you,” “your“, “yours“, “member” “members” and “yourself” refer to all visitors/members to this Site. Your agreement to comply with and be bound by these Terms of Use is deemed to occur upon your first use of the Site. If you do not agree to these Terms of Use, you should not review information or obtain goods, services or products from this Site. The QUAKELOGIC has the total right to edit or delete any content in the Site, including this Agreement, without notifying you.
If you have any questions, comments, or concerns regarding these terms or the Services, please contact us at su*****@********ic.net.
We are constantly trying to improve our Services, so these Terms may need to change along with the Services. We reserve the right to change the Terms at any time, but if we do, we will bring it to your attention by placing a notice on the website, by sending you an email, and/or by some other means.
If you don’t agree with the new Terms, you are free to reject them; unfortunately, that means you will no longer be able to use the Services. If you use the Services in any way after a change to the Terms is effective, that means you agree to all of the changes.
Except for changes by us as described here, no other amendment or modification of these Terms will be effective unless in writing and signed by both you and us.
QUAKELOGIC takes the privacy of its users very seriously. Please review our current Privacy Policy to learn more.
The Children’s Online Privacy Protection Act (“COPPA”) requires that online service providers obtain parental consent before they knowingly collect personally identifiable information online from children who are under 13. We do not knowingly collect or solicit personally identifiable information from children under 13; if you are a child under 13, please do not attempt to register for the Services or send any personal information about yourself to us. If we learn we have collected personal information from a child under 13, we will delete that information as quickly as possible. If you believe that a child under 13 may have provided us personal information, please contact us at su*****@********ic.net.
Effective Date: 16 May 2019
The processing of personal data, such as the name, address, e-mail address, or telephone number of a data subject shall always be in line with the General Data Protection Regulation (GDPR), and in accordance with the country-specific data protection regulations applicable to QUAKELOGIC. By means of this data protection declaration, our enterprise would like to inform the general public of the nature, scope, and purpose of the personal data we collect, use and process. Furthermore, data subjects are informed, by means of this data protection declaration, of the rights to which they are entitled.
When you fill out the form on our website or sign up to user interface, we collect the personal information you give us such as your name, address, phone number and email address. This information is used for order fulfillment and will NEVER be sold to a third party for profit.
When you browse our website, we also automatically receive your computer’s internet protocol (IP) address in order to provide us with information that helps us learn about your browser and operating system.
Email marketing (if applicable): With your permission, we may send you emails about our new products and other updates.
How do you get my consent?
During the checkout process you will be prompted with a required check box that ‘you agree with the storage and handling of your data by this website’.
If we ask for your personal information for a secondary reason, like marketing, we will either ask you directly for your expressed consent, or provide you with an opportunity to say no.
In summary, your rights include the right to:
If after you opt-in, you change your mind, you may withdraw your consent for us to contact you, for the continued collection, use or disclosure of your information, at any time, by contacting us at su*****@********ic.net.
Depending on the circumstances for processing, personal information we process will include: title/salutation; name; address; country or location; employer; e-mail addresses; telephone numbers; IP address and information obtained from that address; information we obtain from use of cookies on your computer.
We may also process other personal information about you when needed to provide data, software, products, services or other information that you requested. We will make you aware of what personal information we are processing at the time of when we obtain it.
We do not process any sensitive personal information about you. You should not provide us with any sensitive personal information. Any sensitive personal information provided to us will be deleted.
We may disclose your personal information if we are required by law to do so or if you violate our Terms of Service.
Your data is stored on a secure server behind a firewall.
We will never sell your information to a third party.
We will only share your information with a third party or transfer your data outside of the UK / EU if we need to. Where we do this we will comply with all of our legal obligations and we ensure that there are adequate protections in place to protect your information.
If we need your consent we will:
You will be able to easily withdraw your consent by contacting us at su*****@********ic.net.
Where we rely on a different lawful basis, such as ‘legitimate interests’ or ‘contractual’, we will do so only to the extent permitted by such lawful basis.
However, certain third-party service providers, such as payment gateways and other payment transaction processors, have their own privacy policies in respect to the information we are required to provide to them for your purchase-related transactions.
For these providers, we recommend that you read their privacy policies so you can understand the manner in which your personal information will be handled by these providers.
In particular, remember that certain providers may be located in or have facilities that are located in a different jurisdiction than either you or us. So, if you elect to proceed with a transaction that involves the services of a third-party service provider, then your information may become subject to the laws of the jurisdiction(s) in which that service provider or its facilities are located.
Once you leave our store’s website or are redirected to a third-party website or application, you are no longer governed by this Privacy Policy or our website’s Terms of Service.
Links
When you click on links on our website or user interface, they may direct you away from our site. We are not responsible for the privacy practices of other sites and encourage you to read their privacy statements.
To protect your personal information, we take reasonable precautions and follow industry best practices to make sure it is not inappropriately lost, misused, accessed, disclosed, altered or destroyed.
Where we no longer need your information and no longer have a basis for keeping it, we will delete it within six months.
To keep track of data, we make use of cookies.
By using this site, you represent that you are at least the age of majority in your state or province of residence, or that you are the age of majority in your state or province of residence and you have given us your consent to allow any of your minor dependents to use this site.
We reserve the right to modify this privacy policy at any time, so please review it frequently. Changes and clarifications will take effect immediately upon their posting on the website and user interface. If we make material changes to this policy, we will notify you here that it has been updated, so that you are aware of what information we collect, how we use it, and under what circumstances, if any, we use and/or disclose it.
If our company is acquired or merged with another company, your information may be transferred to the new owners so that we may continue to sell products to you.
If you would like to: access, correct, amend or delete any personal information we have about you, register a complaint, or simply want more information contact our Privacy Compliance Officer at su*****@********ic.net.
Didn’t find what you were looking for? Do not get tired, fill in the information below and we will contact you.
