View Cart
PhantomLink DIY Alarm Adapter

Self-Monitored Alarm Solution

Email and Text Alerts No Service Fees Universal Compatibility Free Open Hardware Design

PhantomLink Alert Adapter

This simple adapter monitors up to 3 inputs or zones.  When the PhantomLink Alert adapter is triggered, it sends an alert to up to 2 email/text message accounts.

Use as a stand-alone alarm notification system or retrofit an existing alarm for email/text alerts.

Log into the integrated web interface to access the configuration manager and set email server and triggering options.
PhantomLink DIY Alarm System Text Alarm Monitoring

Free Open Hardware Project

100% free and open hardware project to download, build, customize, and share!  No strings attached.

Download full circuit schematic, bill of materials, printed circuit board layout, and installation instructions -- free of charge.

The complete design details are released under the terms of the MIT License, which allows for both commercial and non-commercial applications.

Save Thousands in Monitoring Fees!

How much do you spend each month on service subscriptions?  $30?  $50?  $70?  More?

Over time, these fees add up to thousands of dollars.  Is it worth it?  Depending on the situation and what you're trying to monitor, a self-monitored alarm may be the perfect solution.

Our free open hardware project can help you break free of contracts and monthly fees.  Build it yourself and save thousands!
Text Alarm Monitoring


•  Ethernet Connection
•  3 Trigger Inputs
•  Email and Text Message Alerts
•  Integrated Web Server


•  Industrial Machines
•  Security Systems
•  Climate Controls
•  Automation Systems
•  Process Controllers


No Subscriptions.  No Service Fees.

The PhantomLink Alert adapter is a completely self-contained device.  Use your own email service provider or corporate email server.  This means no subscriptions, no service fees, and no contracts!!

No more relying on third-party installers and service companies, either!  The PhantomLink Alert is a 100% do-it-yourself remote monitoring solution.  You have complete control over the entire alert system!  Perfect for custom monitoring applications!

Universal Compatibility

Works with any source that can provide a 5V or 9-15V trigger.

Compatible with wired security system zones and dry contact closures from industrial machinery. 

Build a fully-customized stand-alone monitoring system or retrofit an existing system.
PhantomLink Text Message Alert System

Email Alerts

Send email and text message alerts to up to 2 different accounts.  Each input can be configured to alert different email/text accounts, too, letting you tailor the notification system to your needs.  You can also configure the notification and re-notification intervals to prioritize alerts.

Text Message Alerts

Get text alerts sent directly to your phone.  Simply enter your SMS gateway email address into the PhantomLink Alert, instead of your personal email address. 

Don't know if you have an SMS email address?  You probably do and don't even know it.  It's a little known fact that most cellular phone companies provide this service.  So take advantage of it and have alerts sent directly to your phone!
PhantomLink Text Message Alert System

Web Configuration

Built-in web server provides a full-featured configuration manager.  Configure all email server settings and trigger options through this convenient interface.  Supports most modern web browsers, including the latest versions of Firefox, Chrome, Internet Explorer, Safari (desktop version), and Android.

Mechanical and Wiring Layout

Frequently Asked Questions

Where can I purchase? We do not sell completed units or kits.  Components can be purchased through online distributors Digi-Key and Mouser. How much does it cost? The PhantomLink Alert is a free open hardware project.  Complete circuit schematics and installation instructions are offered free of charge. What is the monthly service fee? There are NO monthly service fees, NO subscriptions, and NO contracts!  It uses your existing internet connection and email services. You're giving away the design? Yes!  Build it, customize it, and share it.  The design is released under the terms of the MIT License, so you can even use it for commercial as well as non-commercial applications. What kinds of sensors can I connect to it? The adapter can be triggered by any 5VDC or 9-15VDC trigger source.  It is also compatible with dry contacts and most wired security system zones. Can I use it with my alarm system? Yes.  Just ensure your input to the PhantomLink Alert is a 5VDC or 9-15VDC trigger.

Technical Specifications

Inputs 3x Digital Supply Voltage 5-15VDC Supply Current 270mA Trigger Voltage 5VDC or 9-15VDC Invertible Logic Yes Network Interface Ethernet/Fast Ethernet 10Base-T/100Base-Tx Network Protocol HTTP/SMTP

System Requirements

5-15VDC Power Supply Ethernet Cable Internet Access