Hydrogen Sulfide H2S Sensor 50 PPM
Hydrogen Sulfide (H2S) Sensor
Qsafe electrochemical hydrogen sulphide (H2S) module is a compact and versatile sensor that utilizes electrochemical principles to detect the presence of H2S in the air. The sensor is highly reliable and selective, with a built-in temperature sensor that compensates for changes in temperature. It offers both digital and analog voltage output options, making it easy to use for a wide range of applications.
- Electrochemical technology-based
- Dimension 20mm x 20mm
- Precision of Measurement: up to 50ppm
- In compliance with ROHS
Hydrogen Sulfide is a colorless chalcogenic hydride gas in nature having a bad & foul smell similar to a rotten egg. The gas is toxic in nature, inflammable, and acts as a hazard to the environment and public health. The inhalation of this toxic gas can result in eye, nose, and throat irritation, headaches, dizziness, etc and when exposed for a prolonged period to high levels may lead to shock, coma, and death. The common sources include wastes from humans and animals, wastewater treatment plants, crude petroleum, volcanic eruptions, and hot springs.
Features of Qsafe H2S Sensor
Compact
Our H2S sensors are designed to be both portable and powerful, with a compact size that makes them perfect for use in both stationary and mobile applications.
Durable
The H2S sensor’s exceptional longevity sets it apart from many other gas sensors on the market, making it an ideal choice for those who require a reliable, long-lasting solution for their gas detection needs.
Highly Responsive
Our sensors can deliver accurate and reliable readings in a fraction of the time it would take with other detection methods.
Energy Efficient
Our compact sensors not only have a small form factor, but they are also highly efficient in terms of power consumption.
Individual Calibrated
Our individual calibration service ensures that every device that our sensors are installed in delivers the most accurate readings possible.
RoHS Compliant
Our products are fully compliant with RoHS standards. This means that our sensors are free from any toxic or hazardous materials that could pose a risk to human health or the environment.
What technology is being used in H2S Sensor?
The electrochemical method is widely considered to be one of the most effective ways to monitor the concentration of H2S in the atmosphere. This method involves feeding an air sample into a sensor that contains electrodes, a working electrode, a counter electrode, and an ion conductor.
In the electrochemical method of H2S monitoring, H2S reacts with the electrolyte in the sensor and becomes oxidized, resulting in the formation of water molecules and ions. These ions, in turn, generate an electrical current within the sensor that is directly proportional to the concentration of H2S in the environment.
H2S Sensor Calibration
Calibration is comparing the actual/ standard measurement with your instrument or device measurement. Calibrating the device or instrument helps in determining the accuracy of the instrument and measurement traceability. The sensor is exposed to H2S in the range of interest to calibrate the sensor accurately. NIST standard of gas cylinder is used as a reference for the target gas. The standard environmental conditions for sensor calibration used are 23 + 3oC temperature, 50 + 15% relative humidity, 0.9-1.1atm pressure and air velocity of 0.05m/s. The alteration in environmental conditions may affect the sensitivity of sensor but is easily compensated.
Specifications of H2S Sensor
| Parameter | Value |
|---|---|
| Range of measurement | 0 to 50 ppm |
| Resolution | 0.01 ppm |
| Maximum allowable overload | 100ppm |
| Output Data | UART output (3.3V level) |
| Operating Voltage | 3.7V～5.5V |
| Response time | ≤30 seconds |
| Recovery Time | ≤60 seconds |
| Operating Temperature Range | -20℃～50℃ |
| Working humidity | 15%RH-90%RH (non-condensing) |
| Storage temperature | 0～25℃ |
| Service life | 2 years (-20℃～50℃ in air) |