Digital Barometric Sensor Module | 0-40KPa Pressure

This digital barometric pressure sensor module can measure pressure changes to work as a liquid flow sensor or water level controller. It uses the HX710B chip and accurately senses pressure from 0 to 40KPa. This makes it a good choice for many DIY projects. Features and Benefits - Measures gauge pressure from 0 to 40KPa - You can figure out the depth of a water column up to about 4 meters, making it a water level controller board. - Has an HX710B chip with a 24-bit A/D converter - This gives you accurate readings for checking liquid flow or water pressure. - Works with 3.3V to 5V - It plugs right into the power pins of most Arduino boards and other common microcontrollers. - Bridge-type sensor with inlet/outlet ports - You can attach a tube to this to measure air or liquid pressure inside a sealed system. Applications - Building a static water level detector for a tank or reservoir. - Watching pressure differences to guess liquid flow in a closed-loop system. - Making your own digital barometer to measure air pressure. Key Functions This Flow Sensor Module is designed for liquid flow sensing, specifically for water level applications. It provides an analog output signal, making it compatible with a Water Level Controller Board. The module operates within a pressure range of 0-40 kPa, utilising a resistance sensor to detect changes in water level. Its primary function is to accurately monitor and report these changes, enabling precise control in various systems. This 3-pack offers multiple units for broader application or as spares. Common Types of Flow Meters Flow meters are devices used to measure the rate of fluid flow. While this product is a flow sensor module, understanding common types of flow meters provides context. These devices are essential for monitoring and controlling liquid or gas movement in pipelines and systems. They vary widely in their operating principles and are chosen based on the fluid type, flow rate, pressure, temperature, and required accuracy. Examples include velocity-based meters and differential pressure meters, each suited to different industrial and domestic applications. Key Types & How They Work There are several key types of flow meters, each employing distinct methods to measure flow. For example, some measure the fluid's velocity, while others detect changes in pressure caused by the flow. This Flow Sensor Module is a resistance sensor, indicating it works by detecting changes in resistance, likely due to varying water levels which then correlate to flow. Understanding how different types operate helps in selecting the correct tool for a specific task, ensuring accurate and reliable measurements in various liquid flow sensing applications. Velocity-Based Meters Velocity-based meters determine flow by measuring the speed of the fluid as it passes through a pipe. These meters often use technologies such as turbines, ultrasonic waves, or electromagnetic fields to calculate velocity. The measured velocity is then converted into a flow rate based on the pipe's cross-sectional area. While this specific Flow Sensor Module is a resistance sensor for water level, velocity-based meters are common for general liquid flow sensing applications where direct speed measurement is required, offering a different approach to monitoring fluid movement. Differential Pressure (DP) Meters Differential pressure (DP) meters measure flow by creating a pressure drop across an obstruction in the flow path. The difference in pressure before and after the obstruction is directly related to the flow rate. Common obstructions include orifice plates, venturi tubes, and nozzles. While this Flow Sensor Module is a resistance sensor with a 0-40 kPa pressure range for water level, DP meters are widely used for liquid flow sensing across various industries. They are robust and suitable for a broad range of fluid types and operating conditions.