The La Crosse Technology® Indoor Temperature and Humidity Gauge is a dual-gauge indoor thermometer that measures temperatures from -0°F to 120°F (-20°C to 50°C), and humidity from 10% to 90% relative humidity. Humidity plays a big role in comfort, so the La Crosse gauge monitors 5 levels of indoor comfort: Dry, Comfort/Dry, Ideal, Comfort/Wet, or Wet. The La Crosse Indoor Temperature and Humidity Gauge can be used on the wall or placed wherever you need to monitor indoor conditions. Batteries not required.

Great thermometer that doesn’t need a battery.. Billie. Slagle, LA. Sun Jul 02 2023