Other features of the WS-450 include animated circular color graphs of indoor/outdoor temperature and humidity or heat index and dew point. A forecast icon based on changing barometric pressure and comfort level indicator based on the current temperature and humidity are also included.

The WS-450 backlight has an automatic control that adjusts the display brightness based on the light in the environment. When using the supplied AC adapter, you can opt to have the backlight remain always on.

Feature set

• Animated Color Graphs Designed to Gauge the Weather at a Glance
• Forecast Icon Based on Changing Barometric Pressure with Tendency Indicator
• IN/OUT Heat Index (°F/°C) with MIN/MAX Records
• IN/OUT Dew Point (°F/°C) with MIN/MAX Records
• Wireless IN/OUT Humidity (%RH) with MIN/MAX Records & Tendency Indicator
• Wireless IN/OUT Temperature (°F/°C) with MIN/MAX Records & Tendency Indicator
• Indoor Comfort Indicator: COMF, WET, DRY
• Atomic Time & Date with Manual Setting
• 12 / 24 Hour Time Display
• Perpetual Calendar
• 4 U.S. Time Zones: PA, MO, CE, EA
• Time Alarm with Snooze
• EL Backlight: AUTO, HIGH, LOW, OFF