distance light yellow or red light, no target for the light green.) , beeping sound to remind (the detection of the target will beep to remind, the arrival of the center will be a continuous alarm). Sensitivity Adjustable: Three levels of low, medium and high sensitivity, can be adjusted according to the real-time sensitivity requirement, the lower the sensitivity, the higher the accuracy. Hole Marking: Center positioning hole design, directly mark the hole punching position after detection, to achieve accurate punching. More Functions: Support system language setting (6 languages can be selected), system sound volumes setting (can be selected on or off), length unit setting (cm and in two can be selected), shutdown time setting (5 minutes, 10 minutes, 15 minutes, off can be selected), and support to restore factory settings. Rechargeable Battery: Built-in rechargeable lithium battery, configured with Type-C charging interface for you to recharge it in time. Wide Applications: Multi-scene applications, whether indoor and outdoor or industrial and domestic use, can easily cope with. Suitable for home decoration and renovation, wall decoration installation, appliance installation, highway maintenance, etc. Specifications: Name: Wall Metal Detector Material: ABS Battery: 1 * built-in 300mAh lithium battery (included) Maximum detection depth: Containing ferrous metals: 120mm Non-ferrous metals (copper): 100mm AC power: 50mm Single-strand copper wire ( 4m):40mm Wood: 20mm precise mode, 38mm depth mode Automatic shutdown: after 5 minutes without operation Item size: 138 * 68 * 22mm / 5.43 * 2.68 * 0.87in Item weight: 122g / 4.30ounce Package size: 205 * 98 * 45.5mm / 8.07 * 3.86 * 1.79in Package weight: 262g / 9.24ounce Packing List: 1 * Wall Metal Detector