Model: BMP280 Digital Barometric Board Module Pressure ranges: 300-1100 hPa (equivalent to + 9000 …- 500 m above / below sea level) Relative accuracy: ± 12 hPa (equivalent to ± 1 m 950 ~ 1050hPa @ 25 ° C) Absolute precision type: ± 1 hPa (950 … 1050 hPa, 0 ~+ 40 ° C) Offset temperature coefficient: 1.5 Pa / K, equiv. At 12.6 cm / K (25 ~ 40 ° C at 900 hPa) Temperature range: -40- + 85 ° C Color: see the pictures Operating voltage: 3.3 V