Working voltage: 1.7V-3.6V Working temperature: -40C ~ +85C Communication interface: I2C (up to 3.4 MHz) and SPI (3 and 4 wires, up to 10 MHz) Humidity, pressure, and gas sensors can be enabled/disabled individually Current consumption at 1 Hz humidity and temperature: 2.1 A Current consumption at 1 Hz pressure and temperature: 3.1 a Current consumption at 1 Hz humidity, pressure, and temperature: 3.7 a Gas sensor parameters: response time (33-63%) less than 1s (for new sensors), power consumption in ultra-low power mode less than 0.1 mA, output data processing direct indoor air quality (IAQ) index output Humidity sensor parameters: response time (0-83%) ~ 8s Accuracy tolerance 3% r.h. Hysteresis 1.5% r.h. Pin definition: VCC: Power supply positive GND: Ground SCL: I2C/SPI clock line SDA: I2C/SPI data line SDO: SPI data line CS: SPI slave enable Color: As shown Material: PC+Metal Package Contents: 1 x Sensor Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.