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Model # LS-90i

Internet # 203164774

WiFi Internet 7-Day Programmable 3-Stage Thermostat + Free iPhone App

This item has been discontinued.
The Home Depot no longer carries this specific product.

$265.91 /each



Model # LS-90i

Internet # 203164774

Part of the LockState Connect internet controlled device system for your home, the LS-90i WiFi Programmable Thermostat helps better manage home heating and cooling. Control your thermostat from an internet connected computer or smartphone from anywhere in the world. Whether you are at work, on vacation or on the road, view and control your heating and cooling settings and even adjust program settings. All of this, for only 99 cents a month. For the home owner who wants more control, our premium service will also allow you to set up alerts, schedules, and much more. With LockState Connect's home automation system, this thermostat can be paired with door locks, power plugs, or cameras for more control and visibility at home. The sleek 7-day programmable WiFi enabled LS-90i thermostat has touch screen controls and works with nearly any HVAC system including traditional furnaces and heat pumps. Linking the LS-90i to your home’s wireless router takes just a few minutes

  • 7-day scheduling and programming for up to seven independent periods per day for consistent heating and cooling patterns
  • Able to control 3 stages of heat and 2 stages of cool. This allows for more precise temperature regulation and less fluctuation with today's most sophisticated HVAC systems.
  • Works with nearly every HVAC system - including traditional furnaces and heat pumps
  • Easy to use menu system with large backlit touch screen display
  • True auto mode to switch automatically between heat and cool depending on environmental factors
  • Ability to control an external air baffle, external humidifier AND de-humidifier
  • Monitor and control your HVAC system based on humidity as well as temperature
  • Must have either power from the furnace ("C" or "Common" wire) or an external transformer to power the thermostat in order to run the Wi-Fi module
  • Must have Wi-Fi router and a laptop or smartphone with Wi-Fi connectivity to provision thermostat
  • Connections: C, H, B, O, W, W2, W3, Y1, Y2, RH, RC, G, A, DH, EX
  • Target temperature range: 47F to 95F
  • Search the app store for LS CONNECT or visit
  • App available on iPhone and iPad
  • 7-Day programmable thermostat is WiFi internet capable
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Display height (in.) 
2.125 in 
Display width (in.) 
3.5 in 
Product Depth (in.) 
Product Height (ft.) 
Product Height (in.) 
Product Width (in.) 
Batteries Included 
Color Family 
Connected Home Protocol 
Independent Living Type 
Household/Daily Living 
Number of HVAC Zones 
Periods per Programmable Day 
Smart Device Enabled 
System Compatible 
24-Volt Heating & Aiir Conditioning System 
Thermostat Features 
Automatic Heating/Cooling Changeover,Backlit,Built-in Wi-Fi,Daylight Savings Time Ready,Filter Monitor,Lockable,Touch Screen,Vacation Mode 
Thermostat Type 
Heating and Cooling 
Voltage (volts) 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
ENERGY STAR Certified 
Manufacturer Warranty 
Manufacturer Warranty 


Rated 5.0 out of 5 by 2 reviewers.
Rated 5.0 out of 5.0 by Can't live with out it! I recently got this thermostat for my rental property in Florida and I absolutely love it. Usually I would find out that one of my guests left the AC on after their stay when I get my energy bill at the end of the month, now I can just look at my phone and know right when they leave whether or not the AC is on full blast. It looks great and it saves me money, can't ask for much more. June 18, 2012
Rated 5.0 out of 5.0 by Works great! Ordered on line. I had to call LockSafe support a few time and they walk me through the install. Works great for over a month now! I just ordered two more for second home. July 10, 2012
  • 2015-08-31T14:36:54.790-05:00
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