Features: 1.Handheld and anti-slip body for comfortable and firm grip. 2.LCD digital display to show the indication clearly. 3.Wide Application: This stud finder can quickly locate wood, metal and wires invisible in the walls, floors and ceilings of your house. 4.The device can be automatically calibrated anywhere on the wall to successfully find the center of the studs in one step. This greatly reduces errors in the application and ensures that most objects behind the wall can be detected. Ensures quick location of wood, metal and wires invisible in the walls, floors and ceilings of the house. 5.100% Satisfaction: If you have any question, please feel free to contact us.We will try out best to help you. Notice: Please allow 1-3cm deviation due to manual measurement Actual color may be slightly different from the image due to different monitor and light effect Description: Material: ABS Measuring ambient temperature: 0-40C (32-104F) Size:as shown Battery: not included includes: 1X Wall Scanner