Alert Sentry was founded in 1991 when one of the company’s founders, Glenn Maxwell, discovered a need for an emergency response system after his grandmother fell in the driveway outside of her home. Mr. Maxwell had at the time over 20 years of experience in the alarm industry and could not find what he was looking for, so he created his own personal emergency response system.

Since that time, Alert Sentry has grown to provide services for seniors, allowing them to Age in Place, maintaining their independence, dignity, and comfort all in their own home.

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The Good

  • Time in business
  • Certified operators
  • Emergency contacts

Alert Sentry has been in business for twenty-five years and has maintained the highest level of customer service during that timeframe.

Their product line, while not as extensive as other companies, is solid and will provide the basic medical monitoring for their clients.

Each of the operators in the medical response call center is fully certified with the Central Station Alarm Association (CSAA) and undergo 6 full weeks of training before ever taking a call.

The console performs weekly self tests and sends results to the monitoring center. Alert Sentry recommends weekly tests in which users press their help button and simply alert the agent that they are testing their unit.

Subscribers create a list of emergency contacts and agents telephone these individuals in whatever order that the subscriber wants. If a medical monitoring operator is not able to establish contact with the subscriber, then emergency personnel is immediately summoned.

The Bad

  • Fall detection service
  • Pricing

Alert Sentry does not currently offer fall detection service. This service is an add-on in most companies, but provides added peace of mind in that the pendant includes highly specialized sensors which detect sudden movement and automatically summons the base unit and monitoring center. When asked about fall detection, the customer service representatives indicated that it is something which may be available in the future.

Pricing for the mobile service is a little bit more expensive than the competition.

The Bottom Line

For someone wanting basic medical monitoring and alerts, Alert Sentry is a solid option. Their customer service quality and availability is outstanding in the industry.

All of Alert Sentry’s equipment is easy to install and to use, which might be daunting for some seniors. Coverage with the T-Mobile Network is extensive so individuals opting for the iSAFE Mobile Responder are covered nearly anywhere that they may be, whether at home or while they are out and about.

Compared to many of the other medical alert companies, Alert Sentry’s plans seem limited. They offer the basic needs and work hard to provide the best quality of service to support these products.

Alert Sentry is a fully recommended company for one’s medical alert needs.

View All Medical Alert Systems

More Information

Price Breakdown

Alert Sentry offers two personal emergency response systems.

The Standard System

  • Monthly – $24.95/month
  • Quarterly – $59.85 or $19.95/month

The iSAFE Mobile Responder

  • Monthly – $34.95/month
  • $35.00 activation fee (one-time charge)
  • Quarterly – $89.85 or $29.95/month
  • $25.00 activation fee (one-time charge)

Shipping and Handling

  • Standard – Priority shipping is included at no additional cost
  • Standard – Overnight shipping may be available for an additional $49.95
  • iSafe Mobile – $14.95 shipping and handling

Equipment Details

Standard System

The Standard System is a home-based system and requires a home phone which is a landline. Included in this system is a main console with a speaker, microphone and HELP button, an Emergency Help Necklace Pendant and/or an Emergency Help Wristband Pendant. The pendants are both waterproof, lightweight and easy to wear. The standard system is UL certified.

iSAFE Mobile Responder

The iSAFE Mobile Responder offers two-way communication through a pendant, which gives protection anywhere. This communication is offered through T-Mobile nationwide and does not require a landline phone. The pendant may be worn as a necklace, on a wristband, carried on a keychain or in one’s pocket or purse. The pendant is fully waterproof and lightweight. Subscribers may order optional accessories, such as a Key Storage Lock Box ($19.95) and additional pendants for the Standard System ($29.95).


Company Details


Alert Sentry’s equipment is covered by a limited one-year warranty against malfunction. Loss, theft or mistreatment of the equipment is not covered.

Activation Fee

There are no activation fees for The Standard System. The iSAFE Mobile Responder has a one-time activation fee of $35 for those choosing the monthly billing option and $25 for those paying quarterly.

Mobile Alert

The iSAFE Mobile Responder is fully mobile and has coverage is provided by T-Mobile.

Device Range

The Standard System has a range of up to 600 feet from the base unit. The iSAFE Mobile Responder operates wherever T-Mobile Cellular Service is available.


Technology and Equipment

Service Map

Service for the Standard Plan is available in all 50 states. The iSAFE service area includes all of the T-Mobile network and can be found at:

Locations Monitoring Centers

Alert Sentry operates a UL Listed, CSAA (Central Station Alarm Association) 5 Diamond Rated monitoring center in a secure facility in Manchester, NH.


Customers do not have to sign a contract to begin service with Alert Sentry.

Support Quality

Customer support is widely available and professional. The agents are knowledgeable and able to quickly respond to questions. Customer support is available 24 hours per day and 7 days per week.

Time in Business

Alert Sentry was founded in 1991.

Company Contact Information

Alert Sentry Headquarters
207 Bedford St
Lakeville, MA 02347

(508) 923-6912
(800) 253-7899

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1 Alert Sentry Reviews

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    November 28th, 2016 Lakeville, MA

    I had the most wonderful experience with Alert Sentry, I highly recommend this company for family and friends. Very best pricing, services, and product selection available in the market.

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