Feature:1. Multipurpose, the sensor can sense atmospheric pressure, temperature and hudity in many ways.2. Supports high test accuracy, atmospheric pressure sensor can be more convenient for your use.3. Small size atmospheric pressure sensor keeps clearly marked each interface for convenient and simple installation.4. Made of synthetic cardboard material in high quality, hudity sensor keeps high reliability and excellent long‑term stability.5. And scope of work includes ‑40 to +85°C temperature, 0‑100% hudity and 300‑1100 hPa pressure.Spec:Item Type: Atmospheric pressure sensorModel: GY-BMP280-3.3Material: Synthetic cardboardPower Supply Voltage: 1.8-5V DCInterface: I2C (up to 3.4MHz), serial peripheral interface (up to 10 MHz)Scope of Work:Temperature: -40 to +85Hudity: 0-100%Pressure: 300-1100 hPaResolution:Temperature: 0.01Hudity: 0.008%Pressure: 0.18PaAccuracy:Temperature: +-1Hudity: +-3%Pressure: + 1PaPackage List:4 x Sensor4 x Pin Header