SparkFun Qwiic MicroPressure Sensor - 25psi Absolute Pressure, I2C Interface

Name: SparkFun Qwiic MicroPressure Sensor - 25psi Absolute Pressure, I2C Interface
Brand: SparkFun
SKU: SENS-2854
Price: 5229.00 INR
Availability: OutOfStock

₹5,229.00 (Inclusive of all taxes)

Out of Stock

The SparkFun Qwiic MicroPressure Sensor is a compact, digital pressure transducer based on a Honeywell piezoresistive silicon sensor, providing a calibrated absolute pressure range of 1-25 psi (172.37 kPa). It features a 24-bit digital I2C output (address 0x18) and operates from 1.8V to 3.6V, making it ideal for portable, battery-powered projects and systems compatible with Qwiic, Arduino, Raspberry Pi, and other 3.3V microcontrollers.

Features

Honeywell 25psi piezoresistive silicon absolute pressure sensor.
Calibrated & compensated digital output via I2C (address 0x18).
High accuracy of ±0.25% full-scale span.
Ultra-low power consumption (0.01mW typical average at 1Hz).
Qwiic connector enables plug-and-play wiring with no soldering.

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Description

The SparkFun Qwiic MicroPressure Sensor integrates a high-precision Honeywell MEMS piezoresistive pressure die, delivering a fully calibrated and temperature-compensated digital pressure reading. The sensor’s silicon microstructure deforms under applied pressure, causing a change in resistance that is measured and converted to a 24-bit digital value via an internal ASIC, ensuring stable and accurate readings across its operating temperature range.

Designed for system integration, the breakout board includes a 0.1″ (2.5mm) barbless male port for tubing connection, allowing measurement of air or compatible liquid media pressure in sealed environments. Its low-voltage, low-power operation and Qwiic connectivity simplify deployment in portable data loggers, environmental monitoring systems, and industrial control applications requiring reliable pressure feedback.

Key Features

High-precision MEMS piezoresistive sensing element from Honeywell.
Fully calibrated and temperature-compensated 24-bit digital output.
Ultra-low power operation optimized for battery-powered portable devices.
Plug-and-play Qwiic connectivity eliminates soldering and simplifies prototyping.
Robust metal pressure port with barbless 0.1" (2.5mm) fitting for secure tubing attachment.
Wide operating voltage range (1.8V to 3.6V) compatible with 3.3V logic systems.
Compact breakout board footprint for space-constrained designs.

Applications

Portable barometric altitude tracking and weather station instrumentation.
Monitoring air pressure within vacuum chambers or sealed pressurized containers.
Liquid level sensing in tanks via hydrostatic pressure measurement.
Battery-operated pneumatic system monitoring and leak detection.
Integration into wearable devices or IoT nodes for environmental data logging.

Technical Specifications

Model / Name	SparkFun Qwiic MicroPressure Sensor
Pressure Type	Absolute
Operating Pressure Range	1 to 25 psi (172.37 kPa)
Maximum Pressure	60 psi (413.69 kPa)
Accuracy	±0.25% Full Scale Span
Output Interface	I2C (Address 0x18), 24-bit digital
Supply Voltage	1.8V to 3.6V DC
Average Power Consumption	0.01 mW (Typical, 1Hz measurement)
Port Size & Style	Male - 0.1" (2.5mm) Tube, Barbless
Compatible Media	Air, variety of compatible liquid media
Item Type	Sensor Module / Breakout Board

Frequently Asked Questions

What is the operating voltage range for the Qwiic MicroPressure Sensor?

The sensor operates from 1.8V to 3.6V DC. It is designed for 3.3V logic systems and is not 5V tolerant. Ensure your power supply and I2C communication lines do not exceed 3.6V to prevent damage to the device.

How do I connect and communicate with this sensor?

The sensor uses the Qwiic connector system for plug-and-play I2C connectivity. Simply connect it to any Qwiic-enabled development board (Arduino, Raspberry Pi, etc.) using a Qwiic cable. The default I2C address is 0x18. No soldering or level shifting is required for 3.3V systems.

What type of pressure does this sensor measure, and what is its accuracy?

This is an absolute pressure sensor, measuring pressure relative to a perfect vacuum. Its calibrated range is 1 to 25 psi (172.37 kPa) with a high accuracy of ±0.25% of the full-scale span. It can withstand a maximum pressure of 60 psi (413.69 kPa) without damage.

Can I use this sensor to measure liquid level or with liquids?

Yes, it is compatible with a variety of liquid media. By connecting tubing to its 0.1" barbless port and submerging the tube's end, you can measure hydrostatic pressure, which correlates to liquid level. Ensure the liquid is chemically compatible with the sensor's internal materials and port.

What is the power consumption of this sensor?

The sensor features ultra-low power consumption, with a typical average power draw as low as 0.01 mW when taking measurements at a 1Hz frequency. This makes it highly suitable for battery-powered, portable, or always-on IoT applications where energy efficiency is critical.