This microwave leakage detector can be used to verify any leakage from microwave ovens within a few minutes.Features:Digital LCD display with backlight, easy for reading.Leakage volume in dangerous zones will sound "beeping" and a red fleshing lamp.Portable design, convenient and quick for use.Never needs re-calibration.High sensitivity.MIN or MAX data display and data hold function.Excellent reliability and high precision.Specifications:Calibration: 2450MHzMeasurement Range: 0-9.99mW or cm2Warning: 5mW or cm2Accuracy: ()1dbPower Supply: 1 x 9V Battery (NOT Included)Item Size: 12.5 x 5 x 3cm or 4.92 x 1.97 x 1.18inItem Weight: 78g or 2.76ozPackage Size: 16 x 8 x 5cm or 6.3 x 3.15 x 1.97inPackage Weight: 137g or 4.85ozPackage List:1 x Microwave Leakage Detector1 x Storage Bag1 x User Manual (English)