The Microlife non-contact thermometer NC 200 takes a measurement automatically, when the device detects the distance is within 5 cm. The self-indicator light on the back shows the user that the device is at the right distance. Features Auto measurement with distance control: Takes a measurement automatically, when a distance within 5 cm is detected. Guidance system for self-measurement: The self-indicator light on the back shows the user that the device is at the right distance. Multifunctional: Measurement of forehead, objects & ambient temperature in seconds. Blue tracking light: A blue LED light indicates the correct measurement area and the distance. Silent Glow™ technology: A red light will show if temperatures exceed 37.4°C Sound control (on/off): Silent operation especially for measurements at night. Precise measurement in only 3 seconds: Without touching the patient Soft and gentle: Ideal for children Measurement countdown: For easy usage