Features: 1, Precision measurement:(using imported infrared detection system),rapid temperature measurement: measurement time ? 1 second., 2, Non-contact: measuring human forehead without touching human skin. Measurement distance: it can be adjusted within 5~15CM without fixed measurement distance., 3, service life: install 2 AA batteries, which can be used more than 100,000 times, and the service life of the product is more than 3 million times., 4, Temperature alarm: set the alarm temperature freely. Storage data: 32 measurement data are stored for analysis and comparison., 5, Unit Conversion: Use Celsius and Fahrenheit to convert each other. Plastic-absorbing packaging of color boxes. No packing, net weight 175 grams, net weight 350 grams with packing.