Features: High sensitivity to the microwave. Excellent reliability and high precision. Portable design, easy carry and convenient and quick for use. Digital LCD display with backlight, easy for you to read. Never needs re-calibration and high sensitivity. MIN/MAX data display and data hold function. Description: It is important to regularly check for possible leakage from Microwave Ovens in theworkplace. Not only can excessive leakage be a problem for staff, it can be of particulardanger to expectant mothers. This microwave leakage detector canbe used to verify anyleakage from Microwave Ovens within a few minutes. Microwave leakage detectors areused as part of your Portable Appliance Testing routine. Specifications: Call brated at 2450MHZ Range0-9. 99mw/cm2 Warning value:  5.0mw/cm2 Accuracy +dB Power supply: 9v battery Package Included: 1 * Microwave Leakage Detector 1 * Storage Bag 1 * User Manual             Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.