Three-in-one Series Wall Detector Sensitive Detection and Precise Positioning Waterproof, anti-dust and anti-drop protection, non-slip soft rubber bag, strong and drop-proof, waterproof and dust-proof br Sensitive sensor, central target positioning to ensure detection accuracy Comfortable handle with trapezoidal structure, ergonomic design, groove design on both sides of the machine, convenient for measurement, to achieve comfortable grip ul Model detector + 1 9V battery Measuring range, the maximum depth of metal detection is 30 MM The maximum depth of cable detection is 30 MM Wood detection (3 distance detection levels) 1\/2 (13MM) 1 (25MM) 3\/2 (38MM) Automatic shutdown for 3 minutes Working temperature -7 ~ 40 , 70% br Storage temperature -20 ~ 50 , 85% Applicable battery: 9V battery (with bat terie) Carton product packaging (170 * 80 * 45mm) Product weight 184g (total weight) * About the error: the above data is all manual measurements, there may be 1-3mm error. The lot is different. Some deviations are normal. Please refer to the actual product for details. Scope Metal detector tension cable with metal detection function Audible alarm Backlit display Direct display Quick measurement Wire detection br Soft non-slip rubber waterproof and dustproof Plush cushion design