La Crosse Technology 308-1412-3TX-INT Wireless Weather Station (Including 3 Sensors) Price: $36.60 (as of 26/10/2020 05:09 PST- Details)

Includes 3 wireless transmitting temperature and humidity sensors (F/C) with trend arrows
Monitors indoor temperature (F/C) and humidity (percent RH) with trend arrows
Comfort indicator smiley face icon: temperature: 66.2 F to 77 F (19 C to 25 C) humidity between 40Percent & 60Percent; comfort indicator SAD face icon: when values are outside the above range