Pressure Sensors
YRD04-DQYL
Barometric Pressure Sensor

Product Overview
The YRD04-DQYL barometric pressure sensor uses a high-performance imported sensing element with digital calibration to monitor ambient atmospheric pressure in real time. Cost-effective, highly reliable, waterproof and moisture-proof with excellent output consistency, short-circuit and reverse-polarity protection, and IP68 rating. Applied in agriculture, groundwater monitoring, high-altitude climate monitoring, and altitude compensation for level sensors.
Key Features
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Real-time high-accuracy barometric monitoring
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I2C / RS485 output options
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IP68 waterproof & moisture-proof
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Short-circuit & reverse-polarity protection
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Digital calibration, consistent output
Technical Specifications
| Output | I2C / RS485 |
|---|---|
| Supply | 1.8–30 V DC |
| Accuracy | ±0.05%FS (typical) |
| Zero temp. error | ±0.02%FS/°C |
| Housing/Sensor | 304 SS / 316L SS |
| Cable | Φ7.5 mm PU cable |
| Protection | IP68 |
| Compensated temp. | -10 to +80 °C |
| Working temp. | -40 to +125 °C |
| Long-term stability | ±0.02%FS/year (max) |
Typical Applications
Altitude compensation for groundwater
Agricultural meteorology
High-altitude climate monitoring
Weather & environmental stations
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