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EMERSON SENSI ST55U SMART THERMOSTAT WIFI, NO C-WIRE NEEDED - NEW & SEALED!!

bozz0702

(244)

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US $60.00

ApproximatelyAU $92.42

or Best Offer

Condition:

Brand New

Collection:

Free local pickup from Kings Park, New York, United States 11754

Postage:

US $8.71 (approx. AU $13.42) USPS Ground Advantage®.

Located in: Kings Park, New York, United States

Delivery:

Estimated between Tue, 10 Jun and Mon, 16 Jun to 94104

Returns:

No returns accepted.

Payments:

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eBay item number:146469769031

Last updated on 28 Apr, 2025 05:00:18 AESTView all revisionsView all revisions

Item specifics

Condition: Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging ... Brand New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is available in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitionsopens in a new window or tab

Thermostat Programmable Days: 7- Day

Power Source: Battery

Color: White

Compatible Model: EMERSON SENSI ST55U

Compatible Product: Universal

Battery Size: AA

Thermostat Shape: Rectangular

Mounting: Wall-Mounted

Sensor Technology: Temperature

Control Style: App Control, Digital

Model: Sensi ST55U

System Switching: Auto

Programmability: Programmable

UPC: 0786710559693

About this product

Product Identifiers

Brand

Emerson

MPN

ST55U

GTIN

0786710559693

UPC

0786710559693

eBay Product ID (ePID)

26034590377

Product Key Features

Smart Home Compatibility

Apple HomeKit, Google Assistant, Amazon Alexa, Samsung SmartThings

Type

12Au7

Connectivity

Wi-Fi

Item description from the seller

About this seller

Joined Apr 2017

Usually responds within 24 hours

Seller's other items Contact

Detailed seller ratings

Average for the last 12 months

Accurate description

4.9

Reasonable postage costs

4.8

Postage speed

5.0

Communication

5.0

Seller feedback (41)

y***y (184)- Feedback left by buyer.
Past 6 months
Verified purchase
Arrived on time and brand new as described. Good comunication and packed very well. I recommend this seller. AAAAA+++++
Sonic X Shadow Generations - (Sony PlayStation 5, 2024) New Sealed. (#146441824600)
0***a (354)- Feedback left by buyer.
Past 6 months
Verified purchase
Excellent seller A+ Item as described, fast shipping, perfect communication highly recommended.
Stella Deus: The Gate of Eternity (PS2 2005) - CIB w Reg card. (#146211620702)
t***r (691)- Feedback left by buyer.
Past month
Verified purchase
Fast shipping, well packed, just as shown
Patapon Sony PSP, 2008 DEMO DISC Factory Sealed NEW (#146489205795)

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Product ratings and reviews

Learn more

4.5

28 product ratings

21 users rated this 5 out of 5 stars
4 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
2 users rated this 2 out of 5 stars
1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 25 reviews

by coulterc
30 Jan, 2020Top favourable review
Ok and budget choice
I had an American standard thermostat, made by the same company obviously, as the sensei wifi stat was exactly the same base etc. I snapped it in place with the old base, took a minute to install. The features of the app are ok, but some are reserved for the website that your have to pay for, which is annoying.
Verified purchase: YesCondition: NewSold by: j2_enterprises
by ajs1971
11 Feb, 2021Top critical review
Not worth it for me.
Was VERY hard to get it to connect to WiFi and instructions were ZERO help. Had to search and seach online and on YouTube. A one hour install turned into about 8-9 hrs over 2 days. I don't use my thermostat much and when you put it in off position, you can't use Alexa to turn the unit on. If it's on, you can raise or lower the temperature and that's it. So, I'll be using it manually all the time and I could have gotten a different thermostat for that for half the price.Was VERY hard to get it to connect to WiFi and instructions were ZERO help. Had to search and seach online and on YouTube. A one hour install turned into about 8-9 hrs over 2 days. I don't use my thermostat much and when you put it in off position, you can't use Alexa to turn the unit on. If it's on, you can raise or lower the temperature and that's it. So, I'll be using it manually all the time and I could have gotten a different thermostat for that for half the price.
Verified purchase: YesCondition: NewSold by: onwaldenpond
by robertstinauer
07 Sep, 2021
The best WiFi thermostat for simplicity and value!
I have installed 3 Sensi WiFi thermostats so far and this one I purchased on EBay will make #4. I also have an Icomfort and Nest that I use as well for my home and rental properties. I also tried to install a Honeywell but I had to take it back. I do have considerable experience with using these. Very simple to install and hook up to your internet. The App screen shows me 3 units at a time. One rental house has two HVAC units and two thermostats so this is valuable to check. The biggest bonus is all WiFi thermostats measure the humidity in the house. Anything over 70% causes mold and this Sensi software allows for humidity settings to run the air or heat automatically to decrease it. It even sends me an email when the humidity exceeds 70%. This Sensi unit also keeps track of the ... I have installed 3 Sensi WiFi thermostats so far and this one I purchased on EBay will make #4. I also have an Icomfort and Nest that I use as well for my home and rental properties. I also tried to install a Honeywell but I had to take it back. I do have considerable experience with using these. Very simple to install and hook up to your internet. The App screen shows me 3 units at a time. One rental house has two HVAC units and two thermostats so this is valuable to check. The biggest bonus is all WiFi thermostats measure the humidity in the house. Anything over 70% causes mold and this Sensi software allows for humidity settings to run the air or heat automatically to decrease it. It even sends me an email when the humidity exceeds 70%. This Sensi unit also keeps track of the energy used by hours per day. Hands down better than the Nest which has issues shutting the HVAC unit down while you are away and this leads to potential mold. Read any Nest review and this issue comes up all the time. And the Nest costs twice as much.
Verified purchase: YesCondition: NewSold by: spcctoys
by afish49
01 Dec, 2021
WIFI integrated thermostat that does not require a "C" wire
One of the few thermostats that will hook up to wifi that does not need a "C" wire. I go away for the winter and will be able to check my home to make sure the furnace is working and adjust the temperature. I can set a schedule for each day of the week with up to four events during each day or I can let it sense that I am home, probably through my phone app, and if I am not it will set the temp down three degrees and raise it back up when I get back home. I wish that I could use both of these together because I set the temperature down at night. it does it without fail. It also keeps my temp at the set point. It does not go down two or three degrees and then come back up to set temp. I have had a couple of different electronic set back thermostats before but this is much easier to ... One of the few thermostats that will hook up to wifi that does not need a "C" wire. I go away for the winter and will be able to check my home to make sure the furnace is working and adjust the temperature. I can set a schedule for each day of the week with up to four events during each day or I can let it sense that I am home, probably through my phone app, and if I am not it will set the temp down three degrees and raise it back up when I get back home. I wish that I could use both of these together because I set the temperature down at night. it does it without fail. It also keeps my temp at the set point. It does not go down two or three degrees and then come back up to set temp. I have had a couple of different electronic set back thermostats before but this is much easier to set up.
Verified purchase: YesCondition: NewSold by: sure.bean
by bjgalliano
28 Jul, 2021
Thanks again for an excellent product and easy to install
We found your thermostat to be entirely simple to install especially after having some experience with a Google thermostat that was a monster to do anything with. It sounded simple with all the squishing and pollen but yours is ideal it works beautifully we're so happy with it. The wireless works just beautiful I can check my temperature from anywhere from my cell phone within 1 mile or 3000 miles. Thanks again for an excellent product and easy to installWe found your thermostat to be entirely simple to install especially after having some experience with a Google thermostat that was a monster to do anything with. It sounded simple with all the squishing and pollen but yours is ideal it works beautifully we're so happy with it. The wireless works just beautiful I can check my temperature from anywhere from my cell phone within 1 mile or 3000 miles. Thanks again for an excellent product and easy to install
Verified purchase: YesCondition: NewSold by: povertypointpicker

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EMERSON SENSI ST55U SMART THERMOSTAT WIFI, NO C-WIRE NEEDED - NEW & SEALED!!

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Item description from the seller

bozz0702

100% positive Feedback•127 items sold

Detailed seller ratings

Seller feedback (41)

Product ratings and reviews

Most relevant reviews

Ok and budget choice

Not worth it for me.

The best WiFi thermostat for simplicity and value!

WIFI integrated thermostat that does not require a "C" wire

Thanks again for an excellent product and easy to install

More to explore:

bozz0702

100% positive Feedback•127 items sold

Detailed seller ratings

Seller feedback (41)

Picture 1 of 5

EMERSON SENSI ST55U SMART THERMOSTAT WIFI, NO C-WIRE NEEDED - NEW & SEALED!!

Shop with confidence

Item specifics

About this product

Product Identifiers

Product Key Features

Item description from the seller

bozz0702

100% positive Feedback•127 items sold

Detailed seller ratings

Seller feedback (41)

Product ratings and reviews

Most relevant reviews

Ok and budget choice

Not worth it for me.

The best WiFi thermostat for simplicity and value!

WIFI integrated thermostat that does not require a "C" wire

Thanks again for an excellent product and easy to install

More to explore:

Related searches