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Freely switch between Celsius and Fahrenheit temperature units anytime, pick your favorite display mode for easy reading in daily use.

All max/min temperature/humidity records will reset automatically every 24h. From normal display, press and release the MEM button to view.

When battery-powered, touch backlight button for colorful screen, auto off in 10s. USB power supports 3 backlight modes: high, low and off.

Outdoor low battery icon: replace sensor batteries. Indoor icon: replace thermometer batteries. Note: Full charge hides low battery alert.





Freely switch between Celsius and Fahrenheit temperature units anytime, pick your favorite display mode for easy reading in daily use.

All max/min temperature/humidity records will reset automatically every 24h. From normal display, press and release the MEM button to view.

When battery-powered, touch backlight button for colorful screen, auto off in 10s. USB power supports 3 backlight modes: high, low and off.

Outdoor low battery icon: replace sensor batteries. Indoor icon: replace thermometer batteries. Note: Full charge hides low battery alert.