Propane(C3H8) Gas Sensor, 300~10000ppm (LPG)

High- sensitivity propane gas sensors for sale, specifically designed for LPG detection. Detection range spans 300–10,000 ppm with a sensitivity ratio ≥5, enabling rapid identification of trace propane leaks. Operates on standard 5V voltage with power consumption as low as 300mW. Achieves fast response and precise measurement after 48-hour warm-up period, compatible with various alarm systems and detection equipment.

Feature

• The SUCH propane gas sensor employs an electrochemical three-electrode principle, enabling rapid and accurate response within a concentration range of 300–10,000 ppm LPG.
• With a heating power consumption of only 300 mW and a circuit voltage ≤24V DC, the gas sensor effectively reduces system energy consumption, making it ideal for safety monitoring equipment requiring long-term operation.
• The sensor exhibits excellent temperature and humidity adaptability (20°C ±2°C, 65% ±5% RH), maintaining stable output across diverse complex environments.
• High-quality materials and precision manufacturing ensure stable surface resistance (1kΩ–20kΩ), minimal performance degradation, and a standard lifespan of up to 10 years.
• Supports adjustable load resistance design with standardized interface voltages (Vc: 5.0V ±0.1V / Vh: 5.0V ±0.1V), facilitating seamless integration into diverse detection circuits and alarm systems.

Dimension (unit: mm)

Test Circuit

Note: The diagram above shows the basic test circuit for natural gas sensor. This gas sensor requires two voltage inputs: Heater voltage (V_H) and test voltage (V_C). VH is used to provide the sensor with a specific operating temperature and can be supplied by either a DC or AC power source. V_RL is the voltage across the series load resistor (R_L) of the sensor. V_C is the test voltage applied to the load resistor R_L and must be supplied by a DC power source.

Long-term Stability Curve

Note: All tests in the figure were conducted under standard test conditions. The horizontal axis represents observation time, and the vertical axis represents the V_RL value.

Sensor Curve

Sensitivity Characteristic Curve

Temperature and Humidity Characteristic Curve