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Automation Controller Type
Central Automation Control Systems
Timers Type
Plug-in Timers
Sensor Type
Contact Closure Sensors
Water & Irrigation Type
Sprinkler Control
Contact Closure / Relay
X10 Compatible
PC Programmable
Maximum Timed Events
4 Events
Ease of Installation
Intermediate (Installs < 60 minutes)
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Add Any Relay-Based Device To Any INSTEON Network
Smartenit EZIO 4 Input/2 Output Relay Controller
Smartenit EZIO 4 Input/2 Output Relay Controller
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Terminal Block Input & Output Connections
Smartenit EZIO 4 Input/2 Output Relay Controller
Item# 31274
Price: Normally $149.99 
Hot Deal $124.96
Free shipping on orders over $175 - See Details


  • Easy installation takes only minutes
  • Allows any relay or contact closure input to control devices in your INSTEON network
  • Two outputs let you control both AC and DC loads with INSTEON commands

Essential Info

Smartenit's INSTEON-compatible EZIO 4 Input/2 Output Relay Controller (EZIO2x4) can be used to monitor and control low voltage devices such as contact closures, outdoor lights, appliance relays and alarm systems in your INSTEON/X10 home automation network. The Controller allows virtually any device connected to its inputs to send INSTEON signals. Connect a garage door contact closure to the device and never enter a dark house again. The Controller will activate an INSTEON lighting scene to welcome you home whenever the garage door opens. In addition to lighting control, there are a myriad of conveniences the Controller can provide in your INSTEON network. Have a doorbell ring flash all the lights in your house so you won't miss any important visitors or package deliveries or have a motion detector notify your security system of intruders. The possibilities are endless.

While basic functions can be programmed manually, advanced functionality can be programmed with the EZSrve, central automation controller. If you already have a central automation controller or a software package for your INSTEON network that doesn't have the correct parameters to program the advanced functionality of this device, you can download the free Smartenit Utility Suite which works in conjunction with an INSTEON Powerlinc Modem (2412U, 2413U or 2413S). If you need PC-free operation for simple timers, the Smartenit Utility Suite also interfaces with the INSTEON Powerlinc Controller.


What's Included

  • Smartenit EZIO 4 Input/2 Output Relay Controller
  • More Info

    With four inputs, you can monitor external events, such as a garage door contact closures and temperature sensors. The 2 dry-contact relay outputs allow you to send out preprogrammed INSTEON group commands to any device in your INSTEON network or any device connected to the unit's outputs used to control low voltage 120 Volt AC (up to 0.5 Amps) or 12 Volt DC loads, such as furnace heaters, chimes and more. The device also acts as a repeater of powerline INSTEON signals.

    Smart Drapes
    Want to save energy by having your blinds work for you? Use a temperature sensor with your EZIO2X4 so that you can send signals when a specific temperature is reached. Have the Controller lower your motorized drapes and turn on the air conditioner when the thermostat hits 75 degrees. Stay cool without moving a finger.

    Hearing Impaired
    Use the EZIO2X4 to send different kinds of signals, like flashing lights, to make sure you know what's happening in your home. Whether you are in a location in your home that is far from the doorbell or are hearing impaired, have the IO Controller flash your lights whenever the doorbell rings so you won't miss any important visitors or package deliveries.

    INSTEON Compatible
    The EZIO2X4 Controller is fully INSTEON compatible. INSTEON is a powerful home-control networking technology. INSTEON messages are transmitted throughout your home both wirelessly and through the home's existing wiring. All INSTEON messages are confirmed and repeated by INSTEON devices in the network, contributing to the outstanding reliability and performance of INSTEON products.

    X-10 compatibility
    The EZIO2X4 also works with legacy X10 products. If you have an existing X10 network, the Controller works with your X10 products and provides an upgrade path to an INSTEON network.

    Free Utility SoftwareDownload the free Smartenit Utility Suite software by clicking here.



    Smartenit Product No.:EZIO2X4 - 5010D
    Patent No.:U.S. Patent No. 7,345,998, International patents pending
    Dimensions: 4.0" H x 2.5" W x 1.5" D (excluding external valve connector)
    Weight:5 oz.
    Setup Memory:Non-volatile EEPROM - up to 30 links
    INSTEON Addresses: 1 hard-coded out of 16,777,216 possible
    INSTEON Links:417
    INSTEON Messages Repeated:Yes
    X10 Primary Address:1 optional (comes unassigned)
    Operating Temperature Range:Indoors, 32 to 104°F
    Operating Humidity Range:0% - 85% relative humidity
    Supply Voltage:120 Volts AC +/- 10%, 60 Hertz, single phase
    Surge Protection:MOV rated for 150 Volts
    Power Plug:3-pin grounded
    Pass-through Outlet:3-pin grounded
    Certification:Safety tested for use in USA and Canada (ETL #3017581)
    Warranty:1 year

    Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: Compacta International Ltd, Tel: (949) 429-3303


    Terminal Block  Input & Output Connections     
    Terminal Block  Input & Output Connections     


    54 Ratings
    5 star: 26%  (14)
    4 star: 22%  (12)
    3 star: 19%  (10)
    2 star: 11%  (6)
    1 star: 22%  (12)
    Average Customer Rating
    (54 customer ratings)
    Share your thoughts with other customers
    burkyGuy39 -- ann arboor, MI   5/30/2013
    I love what this Controller can do but get EXTREMELY frustrated by the fact that EVERY time we have a power failure, the EZIO2X4 loses ALL of its links and thus stops working until rebuilt. I have almost 80 Insteon switches in my home and this is the only device that consistently dies with every power failure. I can not believe they cannot design a unit with persistent memory capabilities!
    Diego -- Colombia   5/8/2013
    Actually the software is very bad, plus the instructions are easy to follow if you work for the company that made the device, is not clear, and not any one can do it. Being struggleling with it for like two days.
    DAVID -- whippany, NJ   1/23/2013
    Does what it says but difficult to set up, and the directions are not much help. For example the fact that you need resistors in various configruations with the switches is not in the "manual". If you are an electrical engineer, no problems, otherwise plan on spending a lot of time on the forums begging for help. Also, not all of the functionality works with all smarthome products - for example the isy will only pick up on and off, and not a variable signal.
    Ddclausen -- pleasanton, ca   12/16/2012
    I could never get this product to work. Over the course of 2 months on the Simplehomenet forum, I could net get the product to function properly. I worked with their product support team and they finally gave up. They had no clue as to why it didn't work. I am dissapointed as I spent $150 for the device and it is outside the exchange window. Do not buy products that are supported by Simplehomenet.
    Home user -- memphis, TN   11/28/2012
    Works with my ISY99. I use the Insteon motion detector to trigger a zone alarm in my Elk-M1. If you have trouble with setup, factory reset it as described in the manual. Once I did that, it behaved as expected.
    Jimmy -- indianapolis, IN   10/27/2012
    1st unit constantly sent on/off signals if any metal came in contact with any of the left 6 screws a wire, a screw driver, etc. and caused all Insteon units in the house to flash their LEDs due to constant powerline communications. SmartHome tech support replaced it, although I've since found from UDI that grounding the unused Inputs will prevent this. This isn't documented. 2nd & 3rd Units wouldn't link with ISY99i Cannot determine device link table address UDI said this will be addressed in a future firmware release. So far, I've not been able to use the EZIO2x4, but I hope to make good use of it one day when the bugs are worked out. Has nice advertised features.
    STANLEY -- kiawah island, SC   4/14/2012
    First unit received didn't work. Replacement sent quickly and the replacement unit works fine. Easy manual setup. Have not used with software.
    DUNCAN -- suwanee, GA   12/29/2011
    set up was easy
    AARON -- houston, TX   10/8/2011
    Easy install, setup is not as easy, Requires several steps, and is best accomplished by purchasing a powerline modem and free software. Has uses, but did not fit my application.
    Jim Williams -- colleyville, Texas   9/15/2011
    I bought four of these a couple of years ago, and did get them working with ISY. However, as of now, ALL FOUR of these devices has stopped functioning. Five hundred dollars down the drain!
    RICHARD H -- newtown square, PA   7/29/2011
    I have been in touch with Matt and am sending back. When i get my fingers or wires near the term strip, the set LED goes crazy.
    BERT -- succasunna, NJ   5/6/2011
    Haven't installed and tried yet
    RICARDO -- north miami, FL   11/16/2010
    Works perfect. I love the fact that it's also fully X-10 compatible!
    Dave -- pittsburgh, PA   7/15/2010
    The EZIO2x4 has excellent features and flexibility, however it also appears to have some serious compatibility flaws. If you are manually linking, you should be fine. Otherwise, BEWARE! After struggling to get it working with my ISY-99i ultimately did not work, I learned that this product has a spotty history working with several INSTEON controllers and software packages. According to Smarthome and UDI, this EZIO does not currently work with ISY. IMO, Smarthome should disclose this fact on the product page. Also, if SHN ever gets around to addressing the problems with this device I will have to send the unit in for reprogramming; the device & software utility provided does not have the capability to re-flash the firmware.
    JOEL -- lincoln, NE   7/2/2010
    Can not program the device at all. None of the software can see it.
    DAVID S -- waterlooville, XX   1/9/2010
    Need to read the instructions carefully, but configured and working with my ISY99i Pro.
    CHRIS -- larkspur, CO   10/24/2009
    Instructions are a little convoluted but Setup SW works as advertised and unit performs very well. If you need multiple outputs and inputs in one's a great choice. Big plus is command set is fully documented.
    DAVID -- ketchikan, AK   10/22/2009
    Does not work with ISY-99!
    JOHN -- mobile, AL   5/1/2009
    The instructions are a bit convoluted and its not easy to know which relay you are assigning even if you follow the instructions. e.g. to trigger relay one from Insteon you have to set it into program mode then press once then press and hold for 4-6secs, relay two is press twice and then press and hold 4-6, and trigger both you just press and hold. When you're doing this there is no way to know if it has taken the presses and is assigning it to your specific relay. A dip switch for program assignment or more LEDs would solve this.
    MIKE -- springfield, MO   1/17/2009
    Work great with my ISY, Very nice Product.


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