Feature:1. 4in1 multifunction detection, metal detection, wood detection, alternating current detection, cavity detection.2. The product is compact and easy to use, handheld and antislip body for comfortable and firm grip.3. The product has a fivelevel strength display, the weaker the strength, the longer the distance, and the strength is different for different sounds.4. It has a wide range of functions. It is one of the essential tools for home and travel, and it is very popular among users.5. With a large LCD display, the graphics and numbers are clear and easy to read and observe.Specification:Item Type: 4 in 1 DetectorMaterial: ABSColor: As shown in the pictureSize: Approx. 145x55x33mm / 5.71x2.17x1.30inLCD Size: Approx. 43x33x3mm / 1.69x1.30x0.12in3 Function Buttons: ON/OFF/, PUSHApplication: Metal detection, wood detection, alternating current detection, cavity detection can detect 24mmPower Supply: 1x 9V 6F22 (Not included)Low Voltage Prompt: 7.2VQuiescent Current: 25AEnvironment Temperature: 25ProjectUnitMinimum valueTypical valueMaximum valueBattery supply voltageV9Quiescent currentA25Display currentA300Alarm currentmA45Low battery displayV7.1.Package List:1 x 4 in 1 Detector(Battery Not Included)Note:1. Please allow 12in 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 the real object. Please take the real one as standard.