Barometric Pressure Sensor Module [3.3V-5V] [0-40KPa] is a compact air pressure sensor board, which is based on the piezo-resistive pressure sensor. This sensor is an ultra-compact piezoresistive transducer, which produces an electrical signal proportional to the imposed pressure. This board has a high-precision AD sampling chip with an air pressure range of zero up to 40KPa. This sensor can be connected to a 2.5mm flexible tube, to detect the level of the fluid such as water, air, etc., so it can be used as a level detector and controller board for water, air, and other fluid. This is compatible with Arduino boards and can be supplied with logical 3.3V to 5.0V DC, and communicates through SPI from the sensing element to the application. This is a low cost, easy to use and easy to install in OEM applications sensor. This sensor is ultra-low power consumption, an ultra-compact size, with good linearity and low-temperature drift,  suitable for portable and battery supplied applications.Size: 19mm x 18mmOperating Temperature: -35°C ~ 80°CBridge Resistance: 5KΩPressure Range: 0 ~ 40KPaOutput Type: DigitalInput Voltage: 3.3V ~ 5V https://elecena.pl/product/18912920/barometric-pressure-sensor-module 2021-06-25 https://elecena.pl/product/18912920/barometric-pressure-sensor-module 2023-08-14