Feature: 1. Wall detector has a large LCD display and audible warning to help detect the exact location of objects. 2. Wall scanner is light in weight, durable, and convenient to use in the home, office and workshop. 3. Ergonomic design means you can comfortably hold the wall scanner and keep it moving correctly for more accurate results. 4. The shell is made of high‑quality plastic, sturdy and durable, heat‑resistant, and has a long service life. 5. Easy to use, after installing the battery, press the switch to calibrate according to the manual. Specification: Item Type: Wall Detector Material: Plastic Model: TH210 Wall Metal Detector Working Temperature: -7°~40°C, <75% Storage Temperature: -20~50℃, <85% Applicable Battery: 1 x 6F22 9V battery (battery not included) Automatic Shutdown Time: 3 minutes. Package List: 1 x Wall Detector (Battery Not Included)1 x English Manual