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Project: Accurate soil health assessment using calibrated ammonia gas sensors
Introduction: In this project, we will test the performance of the Ammonia Sensor NH3 Sensor (Calibrated) for the determination of soil fertility using a simple configuration.
Gravity CO2 Sensor Selection Guide | |||
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Product Name | Gravity:Analog Electrochemistry CO2 Sensor | Gravity:Analog IR CO2 Sensor | Gravity:UART IR CO2 Sensor |
SKU | SEN0159 | SEN0219 | SEN0220 |
Operation Voltage | 3.7~5V | 4.5~5.5V | 4.5~5.5V |
Output |
Gravity: Analog
(Analog2.7~4.1V)
+
3P Header Digital Output(Alarm):0~VCC Level
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Gravity: Analog
(Analog Output 0.4~2V)
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Gravity: UART
(0~3.3V Level)
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Measurement Principle |
Electrochemistry
(Solid electrolyte battery principle)
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NDIR(non-dispersive infrared) | NDIR(non-dispersive infrared) |
Measurement Range | 0~10000 ppm | 0~5000 ppm | 0~50000 ppm |
Accuracy | ±100ppm@400ppm | ±(100ppm + 6% readings) | ±(100ppm + 6% readings) |
Response Time | <20s | <90s | <30s |
Average Power | <1W | <430mW@5V | <430mW@5V |
Operation Temperature | -20℃~50℃ | 0℃~50℃ | 0℃~50℃ |
Operation Humidity | 0~95% RH (No condensation) | 0~95% RH (No condensation) | 0~95% RH (No condensation) |
Lifespan | >1 years | >5 years | >5 years |
Dimension
(PCB)
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32*42 mm | 37*69 mm | 21*27.1 mm |
Features |
1.Large Range
2.Adjustable Alarm Threshold
3.Fast Response
4.Analog Output
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1.High Accuracy
2.Long Lifespan
3.Auto Temperature Compensation
4.Water Vapor Interference Resistance
5.Ananglog Output
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1.High Accuracy
2.Large Range
3.Long Lifespan
4.Auto Temperature Compensation
5.Water Vapor Interference Resistance
6.3.3V UART Output
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