Zstat is a line of 3 smart thermostats that help you save money on your energy bill and depending on your utility, will be free/reduced after a $100 off rebate.Zstat White is the worlds lowest cost smart thermostat priced at $70, it can be controlled with our App or with SMS messages. It can be installed with out a C wire by featuring an ultra low power WiFi module and design, it's the smart thermostat designed for everyone.Zstat White-S can be thought of as a Nest thermostat and Nest protect built into one unit for $120, it has a back up smoke and carbon monoxide sensors, air quality and humidity sensors and a bluetooth low energy module to enable automatic scheduling by connecting to users phones to learn when the user is home or away, it's the smart thermostat that also keeps you safe.Zstat Aluminum or Stainless Steel is priced at $199 has the same features as the White-S with a metal finish to match your home or buildings decor.