AGS0511 R32 Refrigerant Sensor

Product Overview
The AGS0511 is a high-sensitivity, low-power, and fast-response R32 refrigerant sensor based on MEMS technology. It is designed for real-time monitoring of R32 gas concentration, offering strong anti-interference capabilities and excellent long-term stability with a long service life. Utilizing a high-performance semiconductor silicon-based resistive sensing chip and specialized digital module acquisition technology, this sensor ensures high reliability and stability. Its features include low power consumption, high sensitivity, low cost, and a simple drive circuit. The AGS0511 is fully calibrated and tested before leaving the factory, making it suitable for large-scale applications in home and automotive air conditioning, cold chain transportation, environmental monitoring, chemical processes, and refrigeration systems.

Product Attributes

• Brand: ASAIR
• Model: AGS0511
• Refrigerant: R32
• Sensing Technology: MEMS
• Sensing Chip: High-performance semiconductor silicon-based resistive sensing chip
• Communication Interface: I2C
• Origin: Guangzhou Aosong Electronics Co., Ltd.

Technical Specifications

Pin Definitions

Important Notes

Water Exposure: Water splashing or immersion can degrade performance or damage the sensor. Condensation on the sensing material or freezing can also cause performance degradation or material damage.
High Concentration VOCs: Prolonged exposure to high concentrations of VOC gases (e.g., butane) can cause significant damage. High CO2 concentrations may slightly affect measurement accuracy.
Airflow: Avoid measuring in areas with excessive airflow or direct drafts (e.g., vents, fan outlets) as it can lead to inaccurate readings.
Voltage and Polarity: Exceeding 5.5V can cause permanent damage. Reverse polarity will also cause permanent damage.
Chemical Contamination: Exposure to alkaline/acidic sprays, halogenated substances, or corrosive gases (H2S, SO2, Cl2, HCl) can degrade performance or cause irreversible damage.
Silicon Compounds: Avoid exposure to volatile silicon compounds (e.g., from silicone adhesives, hairspray) as they can irreversibly cover and inhibit the sensor's sensitivity.
Long-term Power Off: Extended periods without power can cause reversible resistance drift. Re-stabilization requires longer power-on times (see Table 4 in original document).
Extreme Environments: Long-term exposure to extreme conditions (high humidity, high temperature, high pollution) can severely and irreversibly affect sensor performance.
Vibration & Shock: Frequent, excessive vibration or strong impacts (like drops) can cause internal wire detachment or component loosening.
Soldering & Cleaning: Manual soldering is recommended (flux: chlorine-free resin, temp: <250, time: <5s). Avoid liquid ingress during cleaning with alcohol or board cleaner. Ensure sensor vents in instruments have clear access to external airflow.
Cabling: Use high-quality shielded cables for signal transmission to ensure communication distance and quality.
Intermittent Power: Continuous power is required for accurate measurements; intermittent power will lead to inaccuracies.

Warning: This product is not intended for use in safety protection devices, emergency stop equipment, or any application where its failure could result in personal injury, unless specifically authorized. Always refer to the product datasheet and manual before installation, handling, use, or maintenance. Failure to comply may result in death or serious injury. The manufacturer assumes no liability for such incidents.