Leviton Z-Wave Reviews: Amazon.com

1 of 6 people found the following review helpful
1.0 out of 5 stars When I first decided that I wanted some degree of home automation, one of the first decisions was which lighting control protocol to use. Z-Wave, Insteon, UPB, X-10 Disappointed. I’d give it zero stars if I could., November 16, 2013
 
This review is from: Leviton VRS15-1LZ Vizia RF + 15A Scene Capable Switch, White/Ivory/Light Almond (Tools & Home Improvement)
Sadly, I’m very disappointed with the Vizia RF+. Not just this 1-button scene controller, but all of them. I replaced all of the switches in my great room and purchased the remote at a cost of about $4000 with the hope of having a very cool configuration. Sadly, it was an epic failure.

The switches are cool, and do cool things, but the signal strength that they have for communicating to other switches is terrible. Often the other switches in the room won’t receive the signal unless you press the on button several times. Then, sometimes it doesn’t receive it at all. The remote obviously has more power, because generally when I press the buttons there, all of the switches programmed for that scene turn on. If I leave the switches sticking out of the electrical boxes (e.g. exposed and out of the wall) they seem to get the signal from the other switches and the remote better. Obviously that’s not attractive or safe, but it proves that the signal strength is abysmal. I even added intermediate receptacles in the room as an after-thought to see if signals would hop through it, like some documentation suggests. No luck whatsoever. I should note that my room is only 20 feet wide by 35 feet wide. It’s a good size, but within the confines of the acceptable distances listed in the documentation, especially since some switches are in the middle, allowing for hop-through signals.

The other thing that bothers me is that I could not get any of the controllers to dim the scenes, I’m not sure why. The single button controllers dim just fine, but supposedly you can turn on a scene with the button, and then immediately hold down the dimmer button to adjust. No dice.

I wish I could return these things, but I’m way past the deadline. I guess I shouldn’t have tried so hard to make this product work. I really wanted to love it.

Source: http://www.amazon.com/Leviton-VRS15-1LZ-Capable-Switch-Almond/product-reviews/B001HT0PB2/ref=cm_cr_dp_qt_hist_one?ie=UTF8&filterBy=addOneStar&showViewpoints=0

Home Automation and Lighting Control

Simply Automated, leading supplier of home automation and lighting control

About UPB Technology

UPB technology provides an inexpensive and reliable solution for residential and commercial powerline communications applications. While other powerline communication technologies exist, none compare to UPB in cost per node, functionality and reliability.

Highly Reliable — The UPB method of communication is 100 ~ 1000 times more reliable than current X-10 technology and 10 ~100 times more reliable than CEBUS or LONWORKS powerline technologies.  UPB is 99.9% reliable versus 70%-80% reliability of X-10.*

UPB transmits farther (over a mile), is less susceptible to powerline noise and capacitive attenuation (signal reduction) than other technologies for three reasons:

Pulse Position Modulation is a highly reliable time based method of sending bits; it narrows the possibility of power line noise affecting communication, unlike X-10 and other carrier modulation technologies.

UPB pulses on the power line are approximately 40 volts; more than five times greater than the 5 to 7 volt signals of X-10.

UPB transmits at low (4 to 40 kHz) frequencies, carrying much more power than higher frequency technologies like X-10 that transmits at 120 kHz.

When put on one phase of a home’s two phase power line, the signals are so strong they go out to the street side transformer and are induced on the opposite phase, returning back to the home.  Since UPB transmits at a low frequency, it does not affect other powerline devices or appliance/loads.

No New Wires – UPB dimmer switches are installed exactly like regular dimmer switches.  They connect to a home’s standard wiring. Since no new or special wiring is required, they work great in retrofit applications too.

Affordable — UPB dimmer switches can be as affordable as high end non-communicating dimmers.  When comparing costs of home upgrades (theater TV, remodeled bath or kitchen) adding lighting automation and control to a room or whole home provides a surprising improvement in quality of life at a comparably low cost.

Simplicity – Adding lighting control can be as simple as plugging in dimming modules or replacing dimming switches Pre-Configured Series. Unlike radio frequency (RF) wireless switches, where reliability is proportional to the number of ‘mess-networked’ switches installed, UPB provides reliability and performance anywhere in the home without the need of repeaters.       

Peer to Peer – No host computer or central controller is necessary for single, point-to-point control or group (lighting scene) control.  UPB is a no-host, peer to peer network.  Interruption of power, or single point controller/repeater failure, will not affect a stand-alone UPB network.

Two Way Communications – Hardware, software and protocol design allows for two-way communication in all products.  Status can be confirmed with polling or automatically transmitted upon local/manual load changes.  

House Separation – Neighbors with UPB will not control each other’s lights.  The UPB addressing scheme allows for 250 systems (houses) on each transformer and 250 devices on each system. It incorporates over 64,000 total addresses compared to 256 for conventional X-10.

Interaction – UPB communication can be used in the presence of all X-10, CEBus, HomePlug or LonWorks compatible equipment with no interference between either. The UPB technology uses a completely different frequency range than any of the wide-band, narrow-band, or spread spectrum technologies. The physical method of UPB communication is entirely different than the modulation-demodulation techniques of all X-10, CEBus, or LonWorks.

Higher Speed – 20 to 40 times the speed of X- 10 in terms of data transmitted. This is equivalent to over ten full commands per second. The average latency of command to action is less than 0.1 second.

 

UPB System Description X-10 to UPB Migration

 

* Reliability is defined as the percentage of transmitter/receiver pairs that correctly operate upon initial installation. The UPB test units are randomly installed in the environment typical of the target market. This market is defined as the single-family residential market in the US, homes with a median size of 2500 Sq, Ft. This environment is defined to be the existing base of homes, without any modifications, which means there should be no “fixing” the electrical system of the residence by adding couplers, repeaters or filtering.

 

4 comments on “Leviton Z-Wave Reviews: Amazon.com

  1. Parker T on said:

    RF has its limits, Leviton struck out in home automation, I always go with Lutron radiora for my high end installs, simply automated upb for the rest.

  2. Same experience, I have a 1870 sq ft home, no strength to go more than 4 rooms in my home, about half way, zwave sucks.

  3. Toy Man on said:

    Wish I could give zero stars to Leviton. Poor quality. Doesnt’ work.

  4. Paula Enes on said:

    Very disappointed in Leviton switch, battery powered, cheap product, returned and purchased Simply Automated, a bit more money, well worth the cost.

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