Product Description
Product Description
The DFRobot Gravity: NH3 Sensor (Calibrated) - I2C & UART is an electrochemical gas sensor module for measuring ammonia concentration in ambient environments. It combines a factory-calibrated NH3 probe with a signal conversion board and provides measurement data through analog, I2C, or UART output. This makes the module suitable for integration into embedded systems and instrumentation with different interface requirements.
The probe uses the electrochemical sensing principle and is designed for stable and sensitive NH3 detection. According to the manufacturer, the module includes an integrated temperature compensation algorithm, a threshold alarm function, and 32 modifiable I2C addresses. The Gravity interface simplifies connection to common control and development platforms such as Arduino, ESP32, and Raspberry Pi.
Technical Features
- Electrochemical gas sensor module for ammonia (NH3) detection
- Factory-calibrated probe for faster deployment
- Output interfaces: analog, I2C, and UART
- 32 modifiable I2C addresses for multi-device operation
- Integrated temperature compensation algorithm
- Threshold alarm function for application-specific monitoring
- High anti-interference capability, stability, and sensitivity according to manufacturer
- Sensor service life of up to 2 years according to manufacturer
Application Areas
Typical application areas include ammonia monitoring in industrial systems, environmental instrumentation, laboratory setups, air quality monitoring, and prototype measurement systems. Support for multiple output formats allows both simple analog evaluation and digital data acquisition in microcontroller- or single-board-computer-based designs.
The module can also be used in multi-sensor concepts within the DFRobot gas sensor series, as the series uses the same operating method and data format according to the manufacturer. This simplifies combination with additional gas sensors for application-specific detection systems.
What's Included
- Gravity: NH3 Signal Conversion Board x1
- NH3 sensor probe x1
- Gravity - 4pin Cable x1
