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Iris CT101 Z-wave Zigbee Smartthings Thermostat (no C-wire) $43

$43.00
+39 Deal Score
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Available directly from the vendor.

https://www.thesmartesthouse.com/...is-version[thesmartesthouse.com]

It's the cheapest smart thermostat I've seen, and definitely benefits from not needing a power wire.

I use a similar one that cost $80 and am very happy.

On sale with 25% off with code HOT25, $35 plus $8 shipping

EDIT: If deal is OOS, try Ebay (thanks vttimc):

https://www.ebay.com/itm/112383239825
Buy It Now = $45.60 shipped

(They also have open box for a few bucks cheaper)

I originally found it at Amazon for $54, with a switch.

https://www.amazon.com/IRIS-Z-wav...rds=spg800

Apparently, the switch is useless without an Iris hub, but the thermostat works directly with ST. (There might be some ability to program a custom handler, but this looks to be for a different model.)

https://community.smartthings.com...ater/31028
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$43.00
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Community Wiki

Last Edited by theraptscallion February 16, 2018 at 04:31 PM
The linked eBay seller accepted an offer for $32 plus shipping

Compatibility according to site:
2GIG Panel
ADT Pulse
Almond (Securify)
Fibaro Home Center 2
Fibaro Home Center Lite
Home Assistant
HomeSeer
Iris
Nexia
SmartThings Hub
VeraEdge Z-Wave Gateway Controller
VeraLite Z-Wave Gateway Controller
VeraPlus Z-Wave Plus Advanced Home Controller
Vivint
Wink

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#3
Cool, this thing is both z-wave and zigbee!
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02-16-2018 at 10:07 AM
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#5
Quote from shopkins82
:
Just because this is a Zigbee connected thermostat, it does not mean it's a smart thermostat. I'd highly recommend anyone looking in this price range consider the Nest E (a true Smart Thermostat), especially if you can get the $100 rebate from your power provider which brings it down to a similar price.
I would argue that you could make a z-wave thermostat much smarter than any nest/ecobee through the use if home assistant or smart things. I have an ecobee but I could accomish everything I do with it with a z wave thermostat and more for less money.
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#6
Quote from Troublestylist
:
https://www.amazon.com/IRIS-Z-wav...rds=spg800

This is about half-price vs. suggested retail. It's the cheapest smart thermostat I've seen, and definitely benefits from not needing a power wire.

I use a similar one that cost $80 and am very happy.

Apparently, the switch is useless without an Iris hub, but the thermostat works directly with ST. (There might be some ability to program a custom handler, but this looks to be for a different model.)

https://community.smartthings.com...ater/31028
you can get the CT101 from TheSmartestHouse.com for 34.47$, buy it from them... that outlet this comes with is cheap crap, you can pick them up for next to nothing if you trust that non-UL approved garbage in your house.

https://www.thesmartesthouse.com/collections/winter-clearance-use-coupon-hot25-for-extra-25-off/prod... [thesmartesthouse.com]
code is HOT25
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#7
Quote from psyctto
:
you can get the CT101 from TheSmartestHouse.com for 34.47$, buy it from them... that outlet this comes with is cheap crap, you can pick them up for next to nothing if you trust that non-UL approved garbage in your house.

https://www.thesmartesthouse.com/collections/winter-clearance-use-coupon-hot25-for-extra-25-off/prod... [thesmartesthouse.com]
code is HOT25
but you need below.. is it same for every model? is there a unit that does not need hub?
*Z-Wave gateway controller required - sold separately.
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#8
Quote from psyctto
:
you can get the CT101 from TheSmartestHouse.com for 34.47$, buy it from them... that outlet this comes with is cheap crap, you can pick them up for next to nothing if you trust that non-UL approved garbage in your house.

https://www.thesmartesthouse.com/collections/winter-clearance-use-coupon-hot25-for-extra-25-off/prod... [thesmartesthouse.com]
code is HOT25
Thanks for the update. I'll add to the first post.
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#9
Quote from sshaker
:
but you need below.. is it same for every model? is there a unit that does not need hub?
*Z-Wave gateway controller required - sold separately.
The intent is to use with the ST hub you already have.
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#10
Quote from shopkins82
:
Just because this is a Zigbee connected thermostat, it does not mean it's a smart thermostat. I'd highly recommend anyone looking in this price range consider the Nest E (a true Smart Thermostat), especially if you can get the $100 rebate from your power provider which brings it down to a similar price.
no, that's the definition of the "smart home"... everything is connected and controllable. these are far more configurable than the Nest/Ecobee's and allow you direct discrete control via whatever zwave/zigbee platform you like, you're not linked to a company and their servers... it can all be local.
i have 3 CT101s in my house, just ordered 2 more from TheSmartestHouse.com the other day for 34$/per to finish the heating system in the house... i use them to mine data and react to having the wood burning stove running in sub 20° weather. they work very well and have been reliable, humidity reading are also very nice to have.


fwiw...
Nest is for people that don't know how to program a 7 day thermostat.
Ecobee is for people with minimal zones or poorly balanced heating systems.
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#11
Quote from sshaker
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but you need below.. is it same for every model? is there a unit that does not need hub?
*Z-Wave gateway controller required - sold separately.
i don't know what you're asking me...
the model is the same, both are the CT101.
yes, you need a zwave hub to use the CT101 thermostat remotely.
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#12
Quote from shopkins82
:
Just because this is a Zigbee connected thermostat, it does not mean it's a smart thermostat. I'd highly recommend anyone looking in this price range consider the Nest E (a true Smart Thermostat), especially if you can get the $100 rebate from your power provider which brings it down to a similar price.
https://www.cnet.com/products/nes...-e/review/

As noted above, I get much more functionality out of this thermostat and my ST than possible with a Nest (which has no remote temperature sensing capability).

And I want no new apps on my phone. One-stop smart home control is what I'm looking for.

Kinda sad that Nest is so heavily subsidized by our tax dollars when other products do more for less.
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#13
Here's what you can control on this thing over the wave.

https://docs.openhab.org/addons/b...0_000.html
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#14
This is a Z-Wave Thermostat. I have two of these. I bought an Ecobee to replace this and I am planning to return the Ecobee because Ecobee with its multiple sensors did not solve the problem of uneven heating. Otherwise I can do a lot more with the CT101 as I can get both RH levels and Temp and write custom rule reacting to this. I bought it at $100, at $35 it's a no brainer

Edit: I do use it with a C Wire, so not sure about not needing the C_Wire part. Someone else can answer that better.
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#15
Thank you OP...hoping this works with my 3-zone system. <fingers crossed>

ds
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