No Touch Design - No Touch to Avoid Cross Infection, Unlike Traditional Thermometers, No Direct Touch with Baby, More Secure and Reliable. Three Colors Reminder - Intelligent and more convenient to use. Green back light for normal temperature, Yellow back light for slight fever and Red back light for high fever. High Accuracy - Measurement deviation less than plus or minus 0.2 degrees, measurement time less than1 second. With 32 readings memory recall for tracking your temperature changes and auto shut off without operation in 30 seconds.