The hook holes and brackets are provided on the back, you can choose hanging or standing it. Can display the internal and external temperature on the same surface. The maximum measurement range, indoor: 0 ~ 50 C; outdoor: 30 ~ 60 C. The temperature trend indicates that the temperature of the maximum / minimum record. Large typeface display, you can see the screen at a longer distance. Product description It is a wireless indoor & outdoor temperature monitor working with water-resistant external sensor which can be easily installed either on the wall or stand on the desk. The clear & simple LCD display enables users to read real time IN/OUT temperature data at a glance. Features: Large typeface display, you can see the screen at a longer distance. Can display the internal and external temperature on the same surface. The maximum measurement range, indoor: 0 ~ 50 C; outdoor: 30 ~ 60 C. The temperature trend indicates that the temperature of the maximum / minimum record. The hook holes and brackets are provided on the back, you can choose hanging or standing it. Specification: Condition: 100% Brand New Shell Color: White / Black (Optional) Indoor Temperature: 0 ~ 50 Outdoor Temperature: -30 ~ 60 Accuracy: 1 Resolution: 0.1 Powered Power: Head Unit: 2 x AAA Batteries (Not Included) Sensor: 2 x AAA Batteries (Not Included) Quantity: 1 set Packaged included: 1 x Indoor Outdoor Thermometer (Not Included the battery) 1 x External Sensor (Not Included the battery) 1 x Manual Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.