Kelsi: On-the-Go Medical Alert

No landline required

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4 (213 reviews)

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How many people will be using this system?

One User

Two Users (Same Household) Save on second user

Select your payment plan:

Pay Annually

$30.95 /month

1 FREE month

Pay Semi-Annually

$33.95 /month

Pay Quarterly

$36.95 /month

  • FREE month of service
  • FREE shipping
  • FREE activation

  • Push the mobile alert button, connect to our 24/7 Command Center
  • You decide who we call in an emergency
  • We use 911 technology to send you help on the go
  • Two-way voice in pendant. As loud as a cell phone on speaker
  • 30 day battery life. No cell phone needed. Unlimited talk time and button pushes
  • Uses Verizon networks. Upon receipt of device, check service in your area
  • No landline or internet connection required
  • Showerproof and compatible with pacemakers
  • Designed to wear around the neck. Belt clip attachment included
  • No fall detection. Want fall detection? Choose Kelsi Pro Mobile Medical Alert

How Does the On-the-Go Medical Alert System Work?

1. Press

1. Press

When you need help, press the button on the Kelsi. It wirelessly notifies Alert1's 24/7 Command Center.

2. Connect

2. Connect

A trained operator from one of our Command Centers comes on the line and asks if you need help.

3. Locate & Send Help

3. Locate & Send Help

We track your location and send the help you need. Our agent stays on the line with you until help arrives.

On-the-Go Medical Alert System Benefits

Kelsi Product Features

  • Small and lightweight mobile medical alert
  • 100% shower safe
  • 30 day battery life

Personalized Response

  • When setting up your Alert1 mobile alert we will help you create your Circle of Care with your custom responders. We can call family, neighbors or 911 in whatever order you choose
  • Compare medical alert systems and you'll see why Alert1 is different. We stay on the line with you until help arrives

Easy Setup

  • After a quick charge, the mobile alert will be ready for you to use

Nationwide Monitoring

  • Alert1 features two fully independent US-based TMA 5 Diamond Certified Command Centers. Our operators are trained to be calm and reassuring in case of emergencies. We will stay on the line with you until help arrives
  • Your mobile medical alert device comes with an unlimited amount of button pushes and talk time, so you can press the help button any time you are in need, 24/7

Protection in and Around the Home

  • The mobile alert system works on the Verizon cellular network 24 hours a day so you can take it with you on the go and still be protected
  • You don't need to buy an additional cellular coverage plan or WiFi

Call us today at 1-866-581-4540 to get on-the-go protection

How Kelsi Mobile Medical Alert Systems Work

Kelsi Technical Specifications

Kelsi Mobile Medical Alert System


  • Full duplex speakerphone; 60 decibels

Power and Battery

  • Operating Voltage 4.2-volt internal battery pack
  • Power Consumption:
  • Battery life may be reduced as a result of user activity, cellular coverage, talk time, device specific settings, and device life

Weight and Dimensions

  Help Button: 

  • Height: 2.60 inches (66 mm)
  • Width: 1.57 inches (40 mm)
  • Depth: 0.67 inches (17 mm)
  • Weight: 1.7 ounces (47 grams)


  • Federal Communications Commission (FCC), Verizon, UL Listed

Manual Alert

  • Mechanical touch button initiates voice call and simultaneous data transmission to call center

Network + Connectivity

  • Communication Modes: TCP/IP (Transmission Control Protocol/Internet Protocol)
  • Data Support: SMS, TCP/IP, UDP
  • Operating bands: LTE CAT1 FDD B4, B13
  • Transmitter Power: Class 3 (0.2 W, 23 dBm)
  • LTE Cat.1: Uplink up to 5 Mbps/Downlink up to 10 Mbps
  • WiFi Support


  • Highly water resistant (IP67); designed to be worn in shower or bath
  • Humidity: Maximum non-condensing humidity 95% RH @ 50°C
  • Functional at temperatures from -4°F to 131°F (-20°C to 55°C)
  • Storage temperature range: -40° F to 185° F (-40° C to 85° C)

Call us today at 1-866-581-4540 to get your peace of mind

30 Day Refund Policy

30 Day Refund Policy (Oct 2017)

Alert1 offers multiple payment plans so you can choose the service that best meets your needs for price and flexibility. Our members are never locked into a multi-year contract. You may cancel your service at any time, without any cancellation charges.

To qualify for a refund, new members must subscribe to an annual or semi-annual service plan, use the medical alert device to place a successful test call to the Command Center and return the device in its original condition within 30 days of initial purchase. Any pre-paid shipping, warranty and activation fees are non-refundable.

Alert1 Reviews

trust icons, alert1 medical alert systems

Mom fell in her kitchen, cut her head and fractured her hand. The Alert1 staff dispatched paramedics, and contacted me right away. I spoke with several of the staff ( at least two different people), and each of them were extremely helpful & considerate, following up with the paramedics to determine Mom's status and exact location, so I knew exactly where to go ( I live an hour away). All of you do a fantastic job, can't thank you enough. P. S. You're always very patient too, all the times Mom inadvertently sets off her alarm!

John — Texas 

Call us today at 1-866-581-4540

Alert1 Protection On The Go

Alert1 Go Anywhere with a mobile medical alert system

No phone? No problem. Alert1's Kelsi mobile medical alert system does not require a base station, cell phone, or landline phone. It is designed to wear around the neck so you can travel with peace of mind.

Kelsi works throughout the U.S. where there is Verizon cellular coverage. You do not need to purchase any cellular coverage plans.

The Kelsi mobile medical alert allows easy, 2-way communication with the Command Center with its help button with built-in microphone and speaker.

How Does the Mobile Medical Alert System Work?

Bike Man using mobile medical alert system

Put the mobile alert system around your neck. If you need help at any time, day or night, simply press the help button on your mobile medical alert system. You will be connected via cellular network to a US based emergency operator at our Command Centers. They will ask if you need help and contact a family member, friend or 911 to get you help fast.

What If I Don't Know Where I Am?

With our mobile medical alert system, press your button to connect to the Command Center. If you need help sent to you, the operator at our Command Center will open a direct connection with 911 and use their precise cellular technology to locate you. We will then communicate the location to your responders so they can get you help. If your responders aren't nearby, we will contact the local 911 near your location. Then, we will stay on the line with you until we are sure your help has arrived.


Good Job
Betty (Member Since 11/29/2012)
you did a good job--thank you for serving me as my Alert 1 provider
Posted on 8/14/2019
Cecilia (Member Since 8/30/2018)
Alert 1 worked great. Everything went perfect. I rate Alert 1 as 10 out of 10! Thank you.
Posted on 8/14/2019
Recommend Highly
Rosemary (Member Since 6/14/2019)
the alert was for mom who was experiencing chest pains help arrived quickly and I am happy to say all is well..would recommend highly
Posted on 7/25/2019
Absolutely Amazed
Beverly (Member Since 10/16/2015)
My family and I were absolutely amazed at how quickly you got paramedics to me. I was lying out in the back yard . They had both the paramedics and my son here in less than five minutes. It was mind boggling. I called to thank you at Alert I. Good Job!!!!!
Posted on 6/21/2019
Such a Comfort
Anne (Member Since 12/8/2011)
My power chair was having serious issues and the battery was running down. I pressed my button and in less than 10 minutes 2 firemen came and helped transfer me to my portable power chair. Such a comfort to know that help can be summoned so quickly by pushing my button
Posted on 5/8/2019
Huge Comfort
Sandy (Member Since 7/28/2015)
Got the call at 2am, mom needed help! Luckily my mom is fine and doing better. It was a huge comfort knowing that she had this protection!
Posted on 5/2/2019
Quick Notification
Floyd (Member Since 2/8/2013)
The paramedics were at the scene almost immediately, and everything went well. I was contacted right away, and appreciated the quick notification. We will continue to use the service, and thanks again.
Posted on 2/27/2019
Thank you
Joan (Member Since 10/10/2018)
The ambulance came in a timely manner. Thank you
Posted on 2/14/2019
Prompt Attention
Agustina (Member Since 11/29/2016)
Thank you for your prompt attention.
Posted on 2/14/2019
Nice and Fast
Robert (Member Since 5/18/2012)
Everyone was nice and fast... Thanks for asking :)
Posted on 2/6/2019