Features: 1. 2 in 1 wall bolt locator and liquid level indicator. 2. Used to detect wood, metal, wires and AC cables. The measurement level switched with the unit /%. 3. Keep function, easy to read data when moving the device.The button is effective and easy to control. 4. Automatic/manual shutdown, saving a lot of energy. Low battery indicator and buzzer indication. 5. 3 switchable scanning modes: 1/2 inch (13mm) bolt, 1 inch (25mm) bolt and 1 inch (38mm) 1/2 bolt. 2-inch LCD screen with green backlight. The button is effective and easy to control and this product is a detector used to detect wood, metal, wires and AC cables. Specifications: Material: ABS Power supply: 1 * 6F22 9V battery (not included) LCD screen size: 42 * 32mm Product size: 153 * 66 * 37mm Weight: 192g Color:black+red Package Included: 1 * Detector(without battery) 1 * Manual (English) Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.