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Instant reading ,quick measurement,get reading in 1 second Adopt the latest algorithm with optimized temperature calibration function Accurate and reliable ±0.2â high accuracy Tri-color indicator lightï¼ display greenï¼orange & red with fever alarm function Memory function ï¼memory recall of 35 reading Multi function design ï¼can measure forehead /ear ,room, object temperature Switching between mute and un-mute Switching betweenâ andâ Automatic shutdown and power saving