
EV-04 personal alarm · family monitored
The Freedom They Want. The Peace of Mind You Need.
Keep your loved ones independent and safe with an SOS alarm that connects them straight to family—never an anonymous call centre.
Pay £139 today, then £20/month
About the EV-04 Personal Alarm
Help is one button press away, and it's you who answers.
Your loved ones want to keep their independence, and you want to know they are safe. The EV-04 Personal Safety Pendant bridges that gap, giving them the freedom to live life on their terms while ensuring help is always just a single button press away. Whether it's an unexpected fall or a moment of confusion, this lightweight, showerproof device bypasses anonymous call centres to instantly connect them directly to your voice. It’s not just a piece of technology; it’s an invisible safety net that keeps your family connected when it matters most, giving you total reassurance and absolute peace of mind every single day.

Key features
Everything they need. Nothing they don't.
One-Touch SOS Emergency Button
Holding the central button triggers immediate hands-free two-way voice calls and sends emergency SMS location alerts, cycling through up to 10 preset family contacts until answered.
Intelligent Fall Detection
Built-in 3D-G sensor and accelerometer technology automatically senses heavy falls or severe impacts, sending an instant distress alert even if the wearer is unconscious.
4-Way Precision Location Tracking
Combines GPS, A-GPS, Wi-Fi, and LBS (cellular towers) to pinpoint the user's exact real-time coordinates, whether they are outdoors or inside a building.
Geofencing & Safe Zones
Allows caregivers to set up virtual boundaries on a map, sending instant automated alerts if the wearer enters or leaves designated areas.
Hands-Free Two-Way Voice Calls
Equipped with a loud, high-quality built-in speaker and sensitive microphone, allowing clear, phone-like communication during emergencies or check-ins.
Medication & Daily Reminders
Supports pre-programmed voice prompts or alarms to assist the wearer with routine tasks like taking daily medication.
Smart Low-Battery Notifications
Automatically alerts family members or caregivers when the battery drops to 20% or 10%, ensuring the device is never left uncharged.

Made on the Isle of Wight
Our story
About Zalth Personal Alarms
Our Roots in the Community
Zalth was born right here on the Isle of Wight out of our local home cleaning service, locally known as ScrubHub.
The Spark
Working closely with elderly residents in their own homes, we saw firsthand how vital it is for seniors to stay independent—and how much families worry about slips, trips, or sudden falls.
A Personal Mission
We realised that corporate call centres can feel distant and slow. We knew there had to be a quicker, warmer, and more direct way to keep families connected.
Our Solution
We launched Zalth Personal Alarms to cut out the corporate middlemen entirely. Our smart technology connects your vulnerable loved ones directly to your phone instantly, putting peace of mind right where it belongs: with the people who care about them most.
One simple plan
Then £20/month
Includes the EV-04 pendant, lanyard and charging base, delivered pre-activated. 12-month minimum term for the connectivity service.
Order nowSee our Terms & Conditions
What's included in your £20.00/month subscription
All-Inclusive Multi-Network Roaming SIM
Built-in smart SIM card that automatically roams between 4G LTE, 3G, and 2G across all major UK mobile networks, connecting to whichever signal is strongest in that exact spot.
Unlimited Emergency SMS Alerts
Ensures that real-time GPS coordinates, fall notifications, and panic alerts are sent instantly to your 10 chosen family contacts without you ever worrying about data caps.
Unlimited VoLTE Voice Minutes
Fully covers the high-clarity voice minutes used during two-way hands-free emergency calls or routine welfare check-ins.
Zero Call-Out or Penalty Fees
No extra charges or hidden penalties if the SOS button is pressed accidentally or if a fall is falsely detected.
Pre-Activated & Ready to Use
The pendant arrives fully programmed with your roaming SIM pre-installed and activated by us, so it works straight out of the box.
How it works
Order online
Create your family account and pay securely. We deliver within 7 working days.
Arrives ready to go
The pendant arrives pre-activated with its roaming SIM installed.
Add your contacts
Sign in to the SOS portal, link the pendant and add up to 10 family contacts.
Test every month
Send a test alert from the portal so you know everything still works.
Technical specifications
- Network Connectivity
- 4G LTE with full backwards compatibility for 3G and 2G mobile networks, using VoLTE for crystal-clear voice clarity.
- Water Resistance
- Certified IP67 waterproof rating, making it completely safe for everyday splashes and use in the shower.
- Ultra-Lightweight Design
- Weighs just 53g and measures a compact 62mm x 47mm x 17mm, making it comfortable for all-day wear.
- Battery & Power
- Features a high-capacity 950mAh rechargeable battery with a convenient drop-in desktop charging dock or wireless Qi charging support.
- Wearing Options
- Comes complete with a quick-release safety breakaway lanyard for the neck, but can also be clipped to a belt or carried in a pocket.
Questions
Frequently asked questions
Anything else? Email info@zalth.co.uk or call 01983 654676. Full details are in our Terms & Conditions.

Give them their freedom. Give yourself peace of mind.
Pay £139 today, then £20/month. No call-out fees, ever.
Order your pendant