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Gravity: PH3 Sensor (Calibrated) - I2C & UART
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This is a sensor that detects phosphine concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, w...
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This is a sensor that detects phosphine concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of phosphine in the environment. Can be widely used in the detection of phosphine in the fields of industry, mining, and environmental protection.
The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years. The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino, ESP32, and Raspberry Pi. The easy-to-use Gravity interface, coupled with our sample code, can quickly build a phosphine concentration detector.
DFRobot has introduced 12 gas detection sensors in this series, CO, O2, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF, which are used in exactly the same way and data format, so you can combine them according to your needs.
Features
Strong anti-interference ability
High stability
High sensitivity
Applications
Industrial phosphine detection
Mining phosphine detection
Environmental protection device
Specification
Detection Gas: Phosphine (PH3)
Detection range: 0~1000ppm
Working Voltage: 3.3~5.5V DC
Working Current: <5mA
Output Signal: I2C, UART (0~3V), analog voltage
Working Temperature: -20~50°C
Working Humidity: 15~90%RH (non-condensing)
Storage Temperature: -20~50°C
Storage Humidity: 15~90%RH (non-condensing)
Lifespan: >2 years (in the air)
Adapter Plate Size: 37*32mm
Compatibility: Arduino, ESP32, Raspberry pi
Documents
Shipping List
Gravity: PH3 Signal Conversion Board x1
PH3 sensor probe x1
Gravity - 4pin Cable x1
Jargon buster
Plain-language definitions for the technical terms used above.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- Temperature compensation
- Temperature compensation means the sensor adjusts its readings to reduce errors caused by changes in water temperature. This matters for field monitoring because ponds, rivers, and tanks can vary in temperature throughout the day and across seasons.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Supplier page — dfrobot.com
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Related Tutorials
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