Product model: K3and Measuring distance: 5-15CM Accuracy tolerance: and0.2 (national standard) Human body temperature measurement range: 32-42and 39 C Surface temperature measurement range: 0-100C Operating temperature range: 10-50C Response speed: 0.1S. Counting range: 999 Display: digital display Continuous alarm for abnormal temperature: 5S Abnormal temperature alarm degree: 36.0-38.0 (Alarm temperature can be manually selected) Whether to support outdoor environment temperature measurement: support Whether to support 12 hours automatic shutdown: support (can be manually selected 12 hours without shutdown) Whether to support Fahrenheit and Celsius: Support Whether to support restoring factory settings: support Whether to support human body, object, counting: support Whether to support voice broadcast: not supported (voice broadcast in 13 countries, only voice version) Power supply mode: Default: 1 18650 battery (3 AA dry batteries can be customized), power bank, adapter Whether to support charging: support (18650 version required, AA dry battery is not rechargeable) Standby time: 10-15 days The display will show on low battery Product accessories: data cable, screws, manual, certificate