Description
CJMCU-MS5540CM MS5540C Digital Pressure Sensor Module Waterproof 100m
Product Description
The CJMCU-MS5540CM Digital Pressure Sensor Module is a high-precision, waterproof pressure and temperature sensor designed for underwater and environmental monitoring applications. With a measurement range of 10 to 1100 mbar, resolution of 0.1 mbar, and temperature resolution of 0.01°C, it is ideal for altimeters, depth gauges, weather stations, and diving projects.
This compact sensor features a piezoresistive silicon microsensor, a 16-bit ADC, and supports SPI and 3-wire serial interfaces for reliable digital communication. Its ultra-low power consumption (<5 µA) and operating voltage of 2.2V–3.6V make it suitable for battery-powered systems.
Waterproof up to 100 meters depth, the MS5540C module ensures durability and precision in harsh environments.
Features
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✅ Pressure Range: 10 – 1100 mbar (absolute pressure)
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✅ Resolution: 0.1 mbar (pressure), 0.01 °C (temperature)
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✅ Sensor Core: Piezoresistive silicon microsensor
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✅ Interface: 16-bit ADC, SPI, 3-wire serial interface
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✅ Calibration: 6 stored parameters for software compensation
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✅ Waterproof: Up to 100 meters depth
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✅ Low Power: <5 µA current consumption
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✅ Operating Temperature: -40 °C to +85 °C
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✅ Compact Size: Sensor 6.2 × 6.4 mm, module board 18 × 16 mm
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✅ RoHS compliant & Pb-free
Specifications
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Operating Voltage: 2.2V – 3.6V
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System Clock: 32.768 kHz
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Module Dimensions: 18 mm × 16 mm
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Environmental Rating: RoHS & Pb-free
Package Includes
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1 × CJMCU-MS5540CM MS5540C Digital Pressure Sensor Module





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