It's important to regularly check for possible leakage from microwave oven in the workplace. Not only can excessive leakage be a problem for staff, but also it can be particular danger to expectant mothers. This microwave leakage detector can be used to verify any leakage from microwave oven within a few minutes; it's a practical instrument for daily life or work. Features: High sensitivity to the leakage of microwave, quick response, excellent reliability and high precision. Easy to use, automatic detection after power on, with maximum/ minimum value display. Digital LCD screen with backlight, clear at a glance, easy to read no matter in the day or at night. Detection Range: 0~9.99mW/cm. Low leakage volume display for warning. Warning value: 5.0mW/cm. Wide used in home kitchen, restaurant, lab, microwave devices production, radio and TV tower, etc. Compact and lightweight, portable to carry. It has been factory-calibrated, no need recalibration any more. Note: Size and color may be slightly different because of manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Yellow Material: ABS + Silicone Calibrated at: 2450MHz Detection Range: 0~9.99mW/cm Warning Value: 5.0mW/cm Accuracy: 1dB Power Supply: 9V 6F22 Battery (NOT included) Item Size: 3.3 * 5.3 * 12.5cm / 1.30 * 2.09 * 4.92in Package Size: 8 * 5 * 16cm / 3.15 * 1.97 * 6.30in Package Weight: 280g / 9.88oz Package List: 1 * Microwave Leakage Detector