As one of its daily deals, Emerson via Rakuten offers its Emerson Sensi Touch WiFi Thermostat in Black for $169. Coupon code "HOME20" cuts that to $135.20. With free shipping, that's $7 under our August mention and the lowest price we could find now by $2. This thermostat is compatible with Amazon Alexa, Apple HomeKit (c-wire required), Wink, and Google Assistant. It allows for WiFi control via the Sensi app for iOS or Android. Deal ends today.

Note: This coupon can be used once per customer and has a maximum discount of $40. You must be signed in to use it.