Amazon is offering two Ecobee Smart Sensors for $53.99 today, saving you $25 off the usual cost. This is the best deal we've seen for the newly-released two-pack, which has positive customer reviews so far. Today's price beats one we saw a couple of weeks ago by $10.

These smart sensors work with all Ecobee smart thermostats. They have built-in occupancy sensors which help your thermostat pay attention to rooms that matter and ensure that your entire home has an even temperature. For instance, if your bedroom tends to get warm at night, you can place a sensor in the room and your thermostat will keep the temperature lower. Alternatively, if there are specific rooms of the house that you don't use very often, or you just don't want to waste energy while you're not home, a sensor can help your thermostat avoid excess heating or cooling in unoccupied spaces. That means more money shaved off your power bill. Activation takes just a few seconds as well.

If you don't have an Ecobee thermostat yet, this model is on sale.

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