Non Digital The product is shipped based on the color or size of the main image of the product page. Non-contact MeasuringNon-contact infrared technology reads from forehead with no physical contact, prevents cross-infection between multiple peoples.The measurement range is 3-5cm. RAPID INSTANT READING- Forehead thermometer adult non contact temperature readings. 1000 reading memory storage. for workplace or school screenings. Infrared Probe : Our Forehead is adopting the latest infrared scanning technology, and hold it 1-3 CM away and press the purple to take the reading. the power is low, low power symbol will appear on the display, prompting to replace new (2x AAA batteries Included )Intelligent AlarmThe fever thermometer has a three-color backlight color alarm function. If the temperature is below 99.1 F / 37.3 C, the LCD will display green (normal body temperature). If the temperature is between 99.3 F / 37.4 C ~ 100.2 F / 37.9 C, the LCD will display orange (low fever). If the temperature exceeds 100.4 F / 38 C, the LCD will display red (high fever).