Features:Intelligent Thermometer: It combines Bluetooth 4.0 and NTC technology and can be used together with mobile app, provide you with the latest temperature data anytime and anywhere, so that you can feel more at ease.Real-time Monitoring Function: It can continuously monitor the temperature of children when they have a fever, then record and draw a table, and can understand the temperature of children in detail. Temperature Alarm: When your child has a fevers that exceeds the set temperature, the app will send an alarm to timely processing and prevent the child from being in a temperature state for a long time to avoid adverse consequences.Best Tool of Family: It is dedicated to giving our family members the best care. It is also suitable for all ages, children, adults and the elderly.Safe Material:Made of environmentally friendly materials,safe,breathable,and comfortable.Specification:Bluetooth version: BLE4.0Temperature sensor: NTC sensorDisplay: LCDTemperature accuracy: 0.1 (32 -42 degree centigrade)Standby time: 12 monthsTest time: 8-10 minutes to reach the accurate temperature valueStrap: Silicone Material Length 22.5cm