Feature: 1. Digital LCD display with backlight, easy for reading. 2. Leakage volume in dangerous zones will sound \"beeping\" and a red fleshing lamp. 3. Portable design, convenient and quick for use. 4. Never needs re-calibration. 5. High sensitivity. 6. MIN/MAX data display and data hold function. 7. Design suitable for use in either hand - calibration: 2450Mhz 8. Never Needs Recalibration - Warning: 5mW/cm2 9. High sensitivity. MIN/MAX data display and data hold function. 10. High sensitivity.MIN/MAX data display and data hold function. 11. Leakage volume in dangerous zones will sound beeping and a red fleshing lamp. Specification: 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/MAX data display and data hold function. Excellent reliability and high precision. Specifications: Calibration: 2450MHz Measurement Range: 0-9.99mW/cm2 Warning: 5mW/cm2 Accuracy: (+/-)1db Power Supply: 1 * 9V Battery (NOT Included) Item Size: 12.5 * 5 * 3cm / 4.92 * 1.97 * 1.18in Item Weight: 78g / 2.76oz Package Size: 16 * 8 * 5cm / 6.3 * 3.15 * 1.97in Package Weight: 137g / 4.85oz Package List: 1 * Microwave Leakage Detector 1 * Storage Bag 1 * User Manual (English) Package List: 1 * Microwave Leakage Detector 1 * Storage Bag 1 * User Manual (English)