Product Description Package content: 1thermometer 2Remote control 2 Wireless sensors The wireless thermometer synchronously monitors the indoor / outdoor temperature. The signal can be received timely and quickly within the transmission range. Then accurately display the data on the screen, so that you can know the outside / outside temperature when you stay at home. (Note: This product does not contain batteries.) Audible Alarm Settings The wireless thermometer console includes audible and visual alarms when the temperature exceeds the preset minimum and maximum alarm settings. Always be sensitive to the ambient temperature. MAX / MIN Logging Max / Min temperature records provide historical temperature readings for the last 24 hours (24 hours start from when you install the base with batteries). The freezer thermometer monitors the room temperature every ten seconds. The LCD display clearly shows the current temperature. Intelligently monitor the temperature around you. 4.Temperature range The outdoor temperature can vary from -40 F ~ 140 F (-40 C ~ 60 C) and the indoor temperature can vary from 32 122 (0 C 50 C ). Temperature unit in degrees Celsius / Fahrenheit for selection. Suitable for many circumstances, such as freezer, kitchen house, outdoor pet greenhouse, etc. Multiple mounting options The monitor has a foldable stand and wall mount, you can hang it on the wall, put it on the table or stick it to your fridge by the magnets on the back, providing best readings for indoor room or outdoor temperature.