Universal Devices ISY/IoX
isy994
ISY is a home automation controller capable of controlling Insteon, X10, Z-Wave and Zigbee/Matter devices connected to supported hardware manufactured by Universal Devices, Inc..
In Apple Home through HomeKit Bridge
What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.
| Entity | Shows up as | Note |
|---|---|---|
light | Light | |
switch | Switch or outlet | |
cover | Blind, garage door, window or door | |
climate | Thermostat | |
fan | Fan | |
lock | Lock | Needs its own HomeKit Bridge in accessory mode |
binary_sensor | Sensor (carbon monoxide, contact, leak, motion, smoke) | |
sensor | Sensor (CO₂, PM10, PM2.5, air quality, humidity, light level, temperature) | |
button | Button (as a switch) | |
select | Mode picker (as switches) |
2 reports below say how a device from this integration behaves in the Home app.
What people report
Universal Devices ISY and eisy controllers push Insteon and Z-Wave devices locally. A Z-Wave lock showed low battery in Apple Home through HomeKit Bridge.
- Works2
- Not working2
| Device | In Home Assistant | In Apple Home | What they said | Source |
|---|---|---|---|---|
| Insteon Dual Band SwitchLinc 2477S | Works Local | Support addedSaved copyProposed change Insteon Dual Band SwitchLinc On/Off Switch model 2477S is not handled in the ISY994 component and is reported in the log as an "unsupported device". This device should appear as "KeypadRelay_ADV" under device type "2.". "KeypadRelay" was also added to be consistent with other devices. <!-- Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue in the additional informat Excerpt saved from GitHub on 2026-10-23. | PR #32813 · 2020-03 | |
| Z-Wave locks via ISY/IoX | Works Local | Broken in Home Lock shows Low Battery and 0% in Apple Home despite 97% in HA | Locks work, battery shows correctly in Home AssistantSaved copyThe problem I have several zwave locks integrated into HA vis the Universal Devices ISY/IoX integration. They work find in Home Asisitant, and show the correct battery level on the dash board when I open the attributes on the entity panel. In my case its 97-98% for all the locks However, Homekit says "Low Battery" and in the device info page they show 0% battery level. ### What version of Home Assistant Core has the issue? core-2023.8.4 ### What was the last working version of Home Assistant Core? not sure, added the locks recently ### What type of installation are you running? Home Assistant … Excerpt saved from GitHub on 2026-10-23. | Issue #99107 · 2023-08 |
| Universal Devices eisy | Not working | Setup fails with Nodes status AttributeErrorSaved copyThe problem I have configured 2 isy994i devices without issue. When I try to configure my eisy it continually fails for AttributeError: 'Nodes' object has no attribute 'status' Logger: homeassistant.config_entries Source: config_entries.py:402 First occurred: November 12, 2023 at 6:05:12 PM (12 occurrences) Last logged: 4:57:46 PM Error setting up entry Motel (192.168.1.229) for isy994 Error setting up entry Motel (eisy.local) for isy994 Traceback (most recent call last): File "/usr/src/homeassistant/homeassistant/config_entries.py", line 402, in async_setup result = await … Excerpt saved from GitHub on 2026-10-23. | Issue #103944 · 2023-11 | |
| Z-Wave locks via ISY/IoX | Not working Local | Broken in Home Locks show Low Battery and 0% while HA shows 97% | Battery correct in HA but wrong in Home appSaved copyThe problem I have several zwave locks integrated into HA vis the Universal Devices ISY/IoX integration. They work find in Home Asisitant, and show the correct battery level on the dash board when I open the attributes on the entity panel. In my case its 97-98% for all the locks However, Homekit says "Low Battery" and in the device info page they show 0% battery level. ### What version of Home Assistant Core has the issue? core-2023.8.4 ### What was the last working version of Home Assistant Core? not sure, added the locks recently ### What type of installation are you running? Home Assistant … Excerpt saved from GitHub on 2026-10-23. | Issue #99107 · 2023-08 |
Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.
How it connects
Local push
Talks to the device on your network, and the device tells Home Assistant the moment something changes.
Found automatically over
- DHCP
- SSDP/UPnP
Details
| Installs (analytics) | 502 (0.07%) |
|---|---|
| Added in | Home Assistant 0.28 |
| Set up in the UI | Yes |
| Maintainers | @bdraco, @shbatm |
In ReReHome
Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.
Bridges get their own settings page listing the accessories behind them.
