VA Large Color Display:Solid wood frame with clear VA color display, which displays more information you need: Time / Calendar / Week / Comfort Index / Atmospheric Pressure / Indoor and Outdoor Temperature and Humidity / Weather Forecast / Change Trend Display. Switchable Format:Temperature alternately in or. Pressure alternately in inHg or hPa/mb. Time in 12/24HR format with two alarms. Outdoor Sensor:433.92MHZ RF transmitting frequency, 50 meters transmission range in an open area. Up to 3 outdoor sensors can be connected (1 sensor included in the package). Adjustable Brightness:The backlight will only light up continuously when the power cable is connected. The brightness is adjustable in 4 levels. The battery only uses the backlight to light up for 10 seconds. With snooze function ( OFF or 1 ~ 30min). Widely Used:Follows various scenarios like bedroom, attic, garage, pet, basement, refrigerator, etc.