1、Intelligent infrared thermometer supports non‑contact measurement, no need to hold, to avoid crossed infection. 2、Using new chip, the induction time is about 0.5s, and the temperature measurement accuracy tolerance is ±0.2℃. 3、Support wall‑mounted installation, with double‑sided tape, easy to install and use. 4、With fault detection warning light, abnormal temperature warning light and memory function. 5、With ℉/℃ switching function, it can quickly test a large number of people, and the operation is convenient. 1 x Thermometer (Battery Not Included)2 x Expansion Tube2 x Screw1 x USB Cable1 x Manual Condition: 100% Brand NewItem Type: ThermometerMaterial: ABSVoltage: 5VTemperature Measurement Accuracy: ± 0.2℃Response Time: 0.5 SecondsAlarm Mode: Abnormal automatic alarm, flashing + soundMeasuring Distance: Automatic measurement 5-10cm / 1.97- 3.94inStandby Time: About 1 WeekInstallation Method: Hanging, double-sided tape, bracket fixedWorking Temperature: 10℃-40℃Measuring Range: 0-50℃Standby Mode: Non-Working time 5s standby, red dots dynamic cycleDisplay: Digital DisplayBattery: 18650 Polymer Lithium Battery (Battery Not Included)Weight: Approx. 471g / 16.6ozSize: Approx. 16.9x 11.3x14cm / 6.7x 4.4x 5.5in