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On-the-Go Medical Alert

No landline required

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4 (244 reviews)

In Stock

How many people will be using this system?

One User

Two Users (Same Household) Save on second user

Do you need fall detection?



Select your subscription plan:



Pay for 30 Months


6 FREE Months

Pay Annually


2 FREE Months

Pay Quarterly


Pay Monthly


Included with your plan:

  • 2 FREE months
  • FREE shipping
  • FREE activation

  • Learn more about adding fall detection
  • Push the mobile alert button to 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, which is loud as a cell phone on speaker
  •  30-day battery life. Unlimited talk time and button pushes
  • No cell phone needed and uses the Verizon network
  • No landline or internet connection required
  • Showerproof and compatible with pacemakers
  •  Designed to wear around the neck. Belt clip attachment included
  •  No fall detection. Users who want fall detection should choose our Kelsi Pro Mobile Medical Alert

Alert1 Protection On the Go

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.

The Benefits of Mobile Medical Alert Systems

Kelsi Product Features

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

Personalized Response

  • When setting up your Alert1 mobile medical alert systems, 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 mobile 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, mobile medical alert systems 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
  • Our mobile medical alert systems come 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 a three year, annual, semi-annual, or quarterly 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 mobile medical alert systems, the Kelsi mobile, do not require a base station, cell phone, or landline phone. These mobile medical alert systems are 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 to use our mobile medical alert systems.


The Kelsi mobile medical alert allows easy, 2-way communication with the Command Center.  With a help button with built-in microphone and speaker, you can rest assured you will always have access to help.


How Do Our Mobile Medical Alert Systems Work?

Bike Man using mobile medical alert system

When your device arrives, 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 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 systems, 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.

How Kelsi Mobile Medical Alert Systems Work


Quick and Careful
Lorraine (Member Since 2/10/2014)
You were very quick at responding and very careful on handling
Posted on 9/17/2020
Always There
Chris (Member Since 12/5/2019)
They are accurate and always there! Great customer service!
Posted on 8/5/2020
Piece of Mind
Mary Ann (Member Since 6/9/2014)
When my mom would get into a difficult situation she would push her button and they were there. It gave my siblings and myself a piece of mind.
Posted on 8/4/2020
Always Prepared
Jennifer (Member Since 7/11/2018)
Always there at the ready even on false alarm operators always prepared to identify problem and send help immediately if needed
Posted on 7/27/2020
Timely Service
Maryanne (Member Since 2/7/2015)
Provided timely service. Alerted paramedics and significant friend .
Posted on 5/6/2020
So Thankful
April (Member Since 2/4/2019)
So thankful we got this for my dad. He doesn’t want to push his button but he fell and was happy he had it and that you called me and not EMS. He wasn’t hurt just slid to the floor, but if you didn’t notify me he would of been on the floor all night. Thank you
Posted on 4/29/2020
Thank you
Mary (Member Since 9/8/2013)
Response was just right - Emergency medical services was alerted immediately and they came to the house right away. Thank you!
Posted on 4/16/2020
Graciela (Member Since 5/23/2019)
Thank you, your respond was excellent
Posted on 4/15/2020
Here Immediately
Marion (Member Since 5/30/2017)
Legs gave out and couldn't get up. My son was called and was here immediately. I appreciated the follow-up also.
Posted on 3/26/2020
Saved Her Life
James (Member Since 4/16/2019)
My 97 years old Aunt had a stoke at 1:30am and pushed the alert button. Alert1 couldn't reach her by phone so they dispatches medical to her address and then called me. That saved her life. I would recommend Alert 1.
Posted on 3/25/2020