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NDIR Refrigerant Gas Sensor, 0~100%LFL

$195.55
This refrigerant gas sensor uses NDIR technology to detect 0~100% LFL with 1% resolution and ±3.75% accuracy. It operates on DC 3.6V~5.0V, consumes <85mA, and provides fast T90 ≤30s response with data updated every second. With a 10-year lifespan, it works in -20°C to 70°C, 0~95% RH, and 75~120 kPa pressure. Application for air conditioning refrigerant leak detection, industrial refrigeration systems, HVAC monitoring.
SKU: ATO-GS-NDIR
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Delivery date: 6-12 days

This HFC sensor uses NDIR technology to detect 0~100% LFL with 1% resolution and ±3.75% accuracy. It features fast T90 ≤30s response, low power consumption, and a 10-year lifespan, ideal for refrigerant leak detection and HVAC systems. 

Specification

Model ATO-FS4NDIR/R454B
Detection Type Hydrofluorocarbon (HFC)
Detection Principle Non-Dispersive Infrared Absorption (NDIR)
Detection Range 0~100% LFL (100% LFL = 11.49% Vol)
Resolution 1% LFL
Accuracy ±3.75% LFL
Operating Voltage DC 3.6V~5.0V
Operating Current <85mA (@5V power supply)
Response Time T90 ≤30s
Detection Frequency Data updated every second (default)
Default Output Mode Serial Port
Reserved Output Mode DAC (0.4V~2V) (default off)
Lifespan 10 years (in air)
Operating Temperature -20°C~70°C
Operating Humidity 0~95% RH (non-condensing)
Storage Temperature -30°C~60°C
Storage Humidity 0~95% RH (non-condensing)
Pressure Range 75 kPa~120 kPa


Feature

  • Low Power Consumption: Designed for low power usage, ensuring extended operational lifespan.
  • Strong Anti-Interference Capability: Excellent resistance to interference, equipped with temperature compensation for stable performance.
  • Moisture Resistance: Effectively resists water vapor interference and is non-toxic for long-term reliability.
  • Linear Output: Provides exceptional linear output for precise and consistent measurements.
  • Long Service Life: Durable design with a lifespan of up to 10 years, minimizing replacement needs.
  • High Accuracy: Dual-channel design ensures high precision and stability with no drift over time.

Size (Unit: mm)

Refrigerant gas sensor size 

Working Principle

Refrigerant gas sensor working principle 

Application 

Refrigerant gas sensor application

Tips: Why is this sensor suitable for HVAC monitoring and refrigerant leak detection?

This refrigerant gas sensor is ideal for HVAC monitoring and refrigerant leak detection due to its precise NDIR technology, which accurately measures hydrofluorocarbon (HFC) concentrations while remaining unaffected by oxygen levels or moisture. Its 0~100% LFL detection range, 1% resolution, and fast T90 ≤30s response ensure quick identification of even small leaks, preventing inefficiencies, environmental harm, and safety risks. Designed to operate in a wide range of temperatures (-20°C to 70°C) and humidity (0~95% RH), the sensor is reliable in diverse environments. Its low power consumption (<85mA) supports continuous monitoring with minimal energy costs, while the 10-year lifespan and compatibility with serial port and DAC outputs make it easy to integrate into automated HVAC systems, enhancing safety and efficiency.

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