---
product_id: 20407505
title: "EyezOn Envisalink EVL-4EZR IP Security Interface Module for DSC and Honeywell (Ademco) Security Systems, Compatible with Alexa"
brand: "eyezon"
price: "HK$1005"
currency: HKD
in_stock: true
reviews_count: 8
category: "Eyezon"
url: https://www.desertcart.hk/products/20407505-eyezon-envisalink-evl-4ezr-ip-security-interface-module-for-dsc
store_origin: HK
region: Hong Kong
---

# IP-based LAN connectivity RJ45 wired interface UL-rated professional security EyezOn Envisalink EVL-4EZR IP Security Interface Module for DSC and Honeywell (Ademco) Security Systems, Compatible with Alexa

**Brand:** eyezon
**Price:** HK$1005
**Availability:** ✅ In Stock

## Summary

> 🛡️ Own Your Security, Outsmart the Rest!

## Quick Answers

- **What is this?** EyezOn Envisalink EVL-4EZR IP Security Interface Module for DSC and Honeywell (Ademco) Security Systems, Compatible with Alexa by eyezon
- **How much does it cost?** HK$1005 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/20407505-eyezon-envisalink-evl-4ezr-ip-security-interface-module-for-dsc)

## Best For

- eyezon enthusiasts

## Why This Product

- Trusted eyezon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reliable & Secure:** UL-rated hardware with encrypted communication ensures your home stays protected with professional-grade reliability and privacy through obscurity.
- • **Robust Compatibility:** Works flawlessly with Honeywell Vista and DSC panels, plus Alexa voice control for hands-free security management.
- • **Future-Proof Your Setup:** Supports zone expanders and integrates with Home Assistant for smart home automation enthusiasts craving granular sensor control.
- • **Seamless IP Integration:** Connect your legacy Honeywell or DSC system to your home network with ease, enabling real-time remote monitoring and control.
- • **DIY Control, Zero Monthly Fees:** Take full ownership of your security system without costly monitoring subscriptions—manage alerts and arming directly from your smartphone app.

## Overview

The EyezOn Envisalink EVL-4EZR is a compact IP interface module that transforms your existing Honeywell or DSC security system into a smart, remotely accessible powerhouse. With wired RJ45 connectivity and UL certification, it offers professional-grade monitoring without monthly fees. Compatible with Alexa and Home Assistant, it empowers tech-savvy homeowners to customize, control, and future-proof their home security with instant alerts and seamless integration.

## Description

Eyez-On EVL-4 IP INTERFACE MODULE

Review: Great little IP communicator for Honeywell Vista - After yet another price increase with ADT, and yet another cell communicator being obsoleted (in just a 3 year period), plus not having control over my sensors or being able to add any new sensors myself without having an ADT technician do it for me, I got fed up with ADT and decided to look for alternatives. Having read all the positive reviews about Envisalink and particular with its integration with Home Assistant, I decided to cut ties with ADT, reconfigure my Vista systems by swaping out a 15P with a 20P and added a zone expander so that I can monitor all rooms as separate zones (rather than having all my doors lumped into one zone and three bedrooms lumped into another zone... thanks ADT, that's REAL helpful), and installed the Envisalink 4 as well as the Sidekick LTE backup communicator. Installation went smoothly and there are plenty of reviews here and good instructions from EyezOn that give the lowdown how to do it all. Got connected to EyezOn's website with no issues and it even picked up my Sidekick even before I started a subscription for it, so it's nice knowing that it's getting a strong signal and connecting successfully. The integration with Home Assistant works great too. Although currently the integration is done by old-fashioned yaml configuration only and not UI yet (as of the 2021.6.1 version), it's pretty simple to setup and now I get near instantaneous sensor status and arming/disarming locally over my LAN. A couple of caveats I ran into: I had a spare Vista 20P board sitting around. When ADT upgraded me to Pulse a few years ago, rather than swapping my current Vista 15P out for the 20P (and getting me two extra zones), the technician just swapped the chip out into the 15P to give it Pulse support and handed me the 20P and say "here, this is yours to do whatever you want". So I saved it as a backup. When it came time to switch to Envisalink, I dusted off the board and put it in my panel. Since it had no chip, I bought one labeled with version 10.23 off of eBay (newer is better, right? WRONG!). Turns out that the latest 10.XX for ADT are meant to support their latest generation of communicators and break compatibility with older and third-party communicators. I kept getting "103" error messages and "Incompatible Communicator" messages on my 6160 keypad display. After e-mailing EyezOn support, they told me the bad news that the 10.XX versions are not compatible with their communicators. I swapped the chip out of my old Vista 15P board with version 9.12 into the 20P, and it fixed my communication issues! So be sure to use a chip with version 9.XX or below. Second issue was with my VLAN setup. I have a pfSense router and segment my network into multiple VLANS. Security systems and cameras get their own VLAN on my network. Turns out that you can't connect to the Envisalink from another VLAN if the password is set to the default "user". So you'll need to either start out with your computer/laptop/cell (whatever you're connecting to the local Envasalink webserver with) on the same VLAN first, change the password to something else (6 digits is the limit for the Envisalink 4 I believe), then put it on it's separate VLAN. This goes for both accessing the local web server as well as for the Home Assistant integration. To get Home Assistant to access it from another VLAN, I simply add a firewall rule to allow the HASS server IP to access the Envisalink IP on port 4025. Hope that helps for those who run into these same issues. Everything works great for me now. It's nice to have professional UL rated monitoring for a fraction of the cost of ADT plus have better local Home Assistant integration, and have total control over maintaining my own security system myself.
Review: Easy to use and still going after almost 3 years - 2021 Update: I just wanted to chime in on this device. It's still working great after 5 years now. Even though it connects to an external website which might be of a concern, the website is still in operation and the Android App still works great. This card is the easiest way that I've found to connect your existing alarm-system to your own control rather than paying a monitoring company like ADT/Spectrum/AT&T to monitor your system. Everything is done via your phone App, and there is very little delay. YOU do the monitoring and you don't have to pay $30+ a month to a company that basically will do the same thing. There are other ways to do the same thing that involve a lot more DIY knowledge, but take a lot more knowledge in networking and programming alarm systems. The newer systems do a lot of this for you already built-in, but why pay for new technology when the old stuff works? From a privacy and security perspective, which would you rather have? A system that is used by thousands of people subscribed to one of the monitoring services which uses identical equipment in all of its installations -- or would you rather have your existing older device connected to the Eyez-On control card which is fairly obscure when it comes to devices? There's no absolutely 100% "unhackable" device, but I'd rather have "security through obscurity" that this device offers. It won't prevent a targeted and well-motivated attack, but it should be *different* enough from the huge numbers of well-known and most-used devices to make it too difficult to bother with for the casual cyber-criminal to bother with. Just make sure to use this with a home router with decent security and IMO it's better than anything you can get by paying for a monitoring company. A side note as well. In my city, you need to register your alarm-system with the local police in order to be able to have them check out the house whenever an alarm is triggered. If a system is monitored by a company like ADT, etc., they will attempt to verify whether it's a false-alarm or a real break-in either by using an intercom built-in to the alarm-system, or via a contact phone. If they can't reach you, then they'll report an alarm to your local police, who will then come to investigate. With Eyez-On, I am still able to register my system as an owner-monitored private system with the same benefits. If an alarm were to be tripped I would be notified and then I could call the local police and report the break-in the same way that the monitoring company would. Or I could call my neighbor who would relish the opportunity to confront an intruder -- but he's an ex-marine with a small arsenal at his disposal. Also, having a monitored alarm-system will sometimes get you a small discount off of your homeowner's insurance. It works for my homeowner's insurance, but it might not for all insurance companies, so check first if this is important to you. Original Review: I bought this in December 2016 along with a TP-Link WiFi extender. It's been almost 3 years and it works great. I've got the Vista 20P system and the app hasn't changed much. I'm still happy that Eyezon keeps the app updated and that I still get instant text messages and notifications with any change to my system. It's very easy to set up, but you need to have some working knowledge of how the system works. There are many videos that you can find that will show you step-by-step instructions on how to hook it up and which wires to connect, etc. It's not plug-n-play, but very close. If your phone doesn't say Apple on it, then you'll probably have no problems with the app, connecting this board to your network, and generally will find it simple. If you're an iPhone user, then expect frustration. Yep, that's what I meant to say. That said, it does seem a little pricey, but think about the savings over a pay-by-the-month "monitored" system. We used to have Time-Warner monitored service, and this is the same thing, only faster and better, and FREE. Time-Warner would get a signal from your system that the alarm was tripped, then they would call your home, then your cell to ask if you needed the police/fire or whatever. This device does the same thing, except instead of a call from a bored/tired/apathetic Time-Warner Security Representative you get a notification on your cell phone (and/or a text message if you prefer). Yes, there are better home security systems, but only marginally better. Yes, you can do the same thing with a custom-built Raspberry Pi and a WiFi extender, but this is much easier. The only downside is that this still relies on a 3rd-party website/server to provide the notifications and texts. If they made a version that would use your own home-network to contact you directly without having to go through their system, that would be better, but I have yet to have any issues in 3 years. Compared to the $360 minimum I'd pay per year with a "monitored" system, this is money well spent. Also, as long as I'm here, I realy wish there was an Alexa skill that would work with this. Being able to say, "Alexa, set the home alarm system to night mode," would be awesome. (I know that can be done with other systems, but I'm talking about my 15-year-old Honeywell system.)

## Features

- Eyez-On EVL-4

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016WQTJ4S |
| Alert Type | Motion |
| Assembly Instructions Description | Easy to install with clear instructions |
| Best Sellers Rank | #129 in Home Security Systems |
| Brand | EYEZON |
| Compatible Devices | Honeywell Vista, DSC, Alexa |
| Connectivity Technology | Wired |
| Connector Type | RJ45 |
| Control Method | Remote, Voice |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,472) |
| Date First Available | October 18, 2015 |
| Installation Type | Self-Adhesive |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.704 ounces |
| Item dimensions L x W x H | 4.7 x 3.1 x 1.2 inches |
| Item model number | EVL-4 |
| Manufacturer | EyezOn |
| Power Source | Corded Electric |
| Product Dimensions | 4.7 x 3.1 x 1.2 inches |
| Recommended Uses For Product | Cellular Phone |
| UPC | 181875000040 760999031644 |
| Unit Count | 1.0 Count |
| Voltage | 1.5 Volts |

## Product Details

- **Brand:** EYEZON
- **Compatible Devices:** Honeywell Vista, DSC, Alexa
- **Connectivity Technology:** Wired
- **Item dimensions L x W x H:** 4.7 x 3.1 x 1.2 inches
- **Power Source:** Corded Electric

## Images

![EyezOn Envisalink EVL-4EZR IP Security Interface Module for DSC and Honeywell (Ademco) Security Systems, Compatible with Alexa - Image 1](https://m.media-amazon.com/images/I/81E8UDMBaPL.jpg)

## Questions & Answers

**Q: Will this work with the older Vista 20se**
A: I also had a Vista 20SE.

The module would not work with it.

I purchased a Vista 20P panel for $48, and made a terminal-screw for terminal-screw swap of the board, then re-programmed the board.

Note:   You have to reprogram  the new board to match what was on the old one.   So if you don't have your programming cheat-sheet, then you will need to cycle through all the settings on the old board, write them down, and then program them into the new board.

And then you will need to make the necessary changes to support the EVL-4.

Plan to spend the day doing it.   Or two.

Mine has been up and running for two years now.

**Q: I bought a home with a DSC 1616 panel & RFK5564 keypad that was installed by ADT. I don't know the master codes. Can I still use this?**
A: Installer code should either be 6321 or the last 4 of the previously used account number. If you cannot find out the last 4 ADT might tell you if you call and explain the situation. Otherwise like previous answers mentioned you would have to default the panel by placing a jumper between pgm1 and zn1, power up panel for 5 seconds than power back down and remove jumper. That will default the panel and will need to be programmed from scratch

**Q: Can I use this module with tuxedo touch wifi keypads ?**
A: If you have a tuxedo touch you are already able to connect to it through its built in web browser locally. Forward a single port on your router, set a local static ip to the tux and match that ip and port in your router.  This way you'll be able to remote into the tux from anywhere and have full access of your alarm and automation. Updated firmware UV the tux will also give you email notifications.

**Q: The 4 wires from evil to what pins on Honeywell 20P panel (pins 1 through 16)? Note that 20p pins have no colors name written.**
A: Terminals are numbered from left, starting with #1.  Black 4, red 5, green 6 and yellow 7. Same terminals as the key pad(s).

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little IP communicator for Honeywell Vista
*by C***D on June 9, 2021*

After yet another price increase with ADT, and yet another cell communicator being obsoleted (in just a 3 year period), plus not having control over my sensors or being able to add any new sensors myself without having an ADT technician do it for me, I got fed up with ADT and decided to look for alternatives. Having read all the positive reviews about Envisalink and particular with its integration with Home Assistant, I decided to cut ties with ADT, reconfigure my Vista systems by swaping out a 15P with a 20P and added a zone expander so that I can monitor all rooms as separate zones (rather than having all my doors lumped into one zone and three bedrooms lumped into another zone... thanks ADT, that's REAL helpful), and installed the Envisalink 4 as well as the Sidekick LTE backup communicator. Installation went smoothly and there are plenty of reviews here and good instructions from EyezOn that give the lowdown how to do it all. Got connected to EyezOn's website with no issues and it even picked up my Sidekick even before I started a subscription for it, so it's nice knowing that it's getting a strong signal and connecting successfully. The integration with Home Assistant works great too. Although currently the integration is done by old-fashioned yaml configuration only and not UI yet (as of the 2021.6.1 version), it's pretty simple to setup and now I get near instantaneous sensor status and arming/disarming locally over my LAN. A couple of caveats I ran into: I had a spare Vista 20P board sitting around. When ADT upgraded me to Pulse a few years ago, rather than swapping my current Vista 15P out for the 20P (and getting me two extra zones), the technician just swapped the chip out into the 15P to give it Pulse support and handed me the 20P and say "here, this is yours to do whatever you want". So I saved it as a backup. When it came time to switch to Envisalink, I dusted off the board and put it in my panel. Since it had no chip, I bought one labeled with version 10.23 off of eBay (newer is better, right? WRONG!). Turns out that the latest 10.XX for ADT are meant to support their latest generation of communicators and break compatibility with older and third-party communicators. I kept getting "103" error messages and "Incompatible Communicator" messages on my 6160 keypad display. After e-mailing EyezOn support, they told me the bad news that the 10.XX versions are not compatible with their communicators. I swapped the chip out of my old Vista 15P board with version 9.12 into the 20P, and it fixed my communication issues! So be sure to use a chip with version 9.XX or below. Second issue was with my VLAN setup. I have a pfSense router and segment my network into multiple VLANS. Security systems and cameras get their own VLAN on my network. Turns out that you can't connect to the Envisalink from another VLAN if the password is set to the default "user". So you'll need to either start out with your computer/laptop/cell (whatever you're connecting to the local Envasalink webserver with) on the same VLAN first, change the password to something else (6 digits is the limit for the Envisalink 4 I believe), then put it on it's separate VLAN. This goes for both accessing the local web server as well as for the Home Assistant integration. To get Home Assistant to access it from another VLAN, I simply add a firewall rule to allow the HASS server IP to access the Envisalink IP on port 4025. Hope that helps for those who run into these same issues. Everything works great for me now. It's nice to have professional UL rated monitoring for a fraction of the cost of ADT plus have better local Home Assistant integration, and have total control over maintaining my own security system myself.

### ⭐⭐⭐⭐⭐ Easy to use and still going after almost 3 years
*by S***H on September 30, 2019*

2021 Update: I just wanted to chime in on this device. It's still working great after 5 years now. Even though it connects to an external website which might be of a concern, the website is still in operation and the Android App still works great. This card is the easiest way that I've found to connect your existing alarm-system to your own control rather than paying a monitoring company like ADT/Spectrum/AT&T to monitor your system. Everything is done via your phone App, and there is very little delay. YOU do the monitoring and you don't have to pay $30+ a month to a company that basically will do the same thing. There are other ways to do the same thing that involve a lot more DIY knowledge, but take a lot more knowledge in networking and programming alarm systems. The newer systems do a lot of this for you already built-in, but why pay for new technology when the old stuff works? From a privacy and security perspective, which would you rather have? A system that is used by thousands of people subscribed to one of the monitoring services which uses identical equipment in all of its installations -- or would you rather have your existing older device connected to the Eyez-On control card which is fairly obscure when it comes to devices? There's no absolutely 100% "unhackable" device, but I'd rather have "security through obscurity" that this device offers. It won't prevent a targeted and well-motivated attack, but it should be *different* enough from the huge numbers of well-known and most-used devices to make it too difficult to bother with for the casual cyber-criminal to bother with. Just make sure to use this with a home router with decent security and IMO it's better than anything you can get by paying for a monitoring company. A side note as well. In my city, you need to register your alarm-system with the local police in order to be able to have them check out the house whenever an alarm is triggered. If a system is monitored by a company like ADT, etc., they will attempt to verify whether it's a false-alarm or a real break-in either by using an intercom built-in to the alarm-system, or via a contact phone. If they can't reach you, then they'll report an alarm to your local police, who will then come to investigate. With Eyez-On, I am still able to register my system as an owner-monitored private system with the same benefits. If an alarm were to be tripped I would be notified and then I could call the local police and report the break-in the same way that the monitoring company would. Or I could call my neighbor who would relish the opportunity to confront an intruder -- but he's an ex-marine with a small arsenal at his disposal. Also, having a monitored alarm-system will sometimes get you a small discount off of your homeowner's insurance. It works for my homeowner's insurance, but it might not for all insurance companies, so check first if this is important to you. Original Review: I bought this in December 2016 along with a TP-Link WiFi extender. It's been almost 3 years and it works great. I've got the Vista 20P system and the app hasn't changed much. I'm still happy that Eyezon keeps the app updated and that I still get instant text messages and notifications with any change to my system. It's very easy to set up, but you need to have some working knowledge of how the system works. There are many videos that you can find that will show you step-by-step instructions on how to hook it up and which wires to connect, etc. It's not plug-n-play, but very close. If your phone doesn't say Apple on it, then you'll probably have no problems with the app, connecting this board to your network, and generally will find it simple. If you're an iPhone user, then expect frustration. Yep, that's what I meant to say. That said, it does seem a little pricey, but think about the savings over a pay-by-the-month "monitored" system. We used to have Time-Warner monitored service, and this is the same thing, only faster and better, and FREE. Time-Warner would get a signal from your system that the alarm was tripped, then they would call your home, then your cell to ask if you needed the police/fire or whatever. This device does the same thing, except instead of a call from a bored/tired/apathetic Time-Warner Security Representative you get a notification on your cell phone (and/or a text message if you prefer). Yes, there are better home security systems, but only marginally better. Yes, you can do the same thing with a custom-built Raspberry Pi and a WiFi extender, but this is much easier. The only downside is that this still relies on a 3rd-party website/server to provide the notifications and texts. If they made a version that would use your own home-network to contact you directly without having to go through their system, that would be better, but I have yet to have any issues in 3 years. Compared to the $360 minimum I'd pay per year with a "monitored" system, this is money well spent. Also, as long as I'm here, I realy wish there was an Alexa skill that would work with this. Being able to say, "Alexa, set the home alarm system to night mode," would be awesome. (I know that can be done with other systems, but I'm talking about my 15-year-old Honeywell system.)

### ⭐⭐⭐⭐⭐ Brings a 20-Year-Old Alarm System Back to Life
*by J***6 on January 22, 2026*

I installed this EyezOn Envisalink on an Ademco Vista 20 panel that is probably 20 years old, and it works perfectly. I have gone a long time without monitoring, and now that this is a second home, having app and email notifications gives me real peace of mind at no monthly cost. Being able to arm and disarm remotely is exactly what I needed. I did not have a hardwired network connection near the panel, but a TP-Link AC750 travel router in client mode solved that problem instantly. Setup was straightforward and the system has been rock solid since. If you have an older Honeywell or Ademco panel and want modern features without paying monitoring fees, this is a great upgrade.

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-26*