Feature:1. Multi‑purpose, the sensor can sense atmospheric pressure, temperature and humidity 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, humidity sensor keeps high reliability and excellent long‑term stability.5. And scope of work includes ‑40 to +85°C temperature, 0‑100% humidity 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 +85℃Humidity: 0-100%Pressure: 300-1100 hPaResolution:Temperature: 0.01℃Humidity: 0.008%Pressure: 0.18PaAccuracy:Temperature: +-1℃Humidity: +-3%Pressure: + 1PaPackage List:4 x Sensor4 x Pin Header