Advanced Infrared Refrigerant Leak Detector with NDIR Sensor Technology
The Elitech ILD-300 features advanced NDIR (Non-Dispersive Infrared) sensor technology that detects even the most difficult refrigerants like R-134a, R-404A, R-407C, R-410A and 1234yf with ultra-sensitive precision.
Engineered with professional HVAC/R technicians in mind, the ILD-300 combines cutting-edge technology with practical field functionality.
Allows detection in difficult and hard-to-reach areas with precision and ease.
Advanced infrared detection with superior performance characteristics.
Responds to all halogenated refrigerants containing chlorine or fluorine.
Automatic self-calibration within 3 seconds for consistent accuracy.
Precision engineering for professional HVAC/R applications
| Sensor Principle | Infrared Spectrum Absorption (NDIR) |
| Preheating Time | 30 seconds |
| Reset Time | 2 seconds |
| Response Time | 3 seconds |
| Automatic Shutdown | 10 minutes without operation |
| Weight | 2.8 lb (1.27 kg) |
| Size | 7.9 × 3.3 × 1.5 inches |
| Operating Temperature | -10°C to 52°C (14°F to 125.6°F) |
| Operating Humidity | 50% to 85% RH (non-condensing) |
| Storage Temperature | -20°C to 60°C (-4°F to 140°F) |
| Battery Type | Built-in Li-ion 3000mAh (USB rechargeable) |
| Battery Life | Up to 6 hours continuous operation |
Everything you need for professional leak detection:
2-Year Repair Service & Technical Support
See how the ILD-300 compares to other Elitech leak detection models
| Feature / Model | ILD-100 | ILD-200 | ILD-300 | IR-200 | Inframate C |
|---|---|---|---|---|---|
| Sensor Type | Infrared | Infrared | Infrared (NDIR) | Infrared & Heated Diode | Infrared |
| Sensor Life | ≥10 years | ≥10 years | ≥10 years | ≥10 years/2 years | ≥40,000 hours |
| Gas Selecting Function | ✗ | ✗ | ✓ | ✗ | ✗ |
| UV Light | ✗ | ✓ | ✓ | ✓ | ✓ |
| Peak Function | ✗ | ✓ | ✓ | ✓ | ✓ |
| Battery Type | 1×Li 3000mAh | 1×Li 3000mAh | 1×Li 3000mAh | 2×Li 2200mAh | 2×Li 2600mAh |
| Probe Length | 14.37 inch | 14.37 inch | 14.37 inch | 10 inch + extended | 10 inch + extended |
Expert answers to common technical questions about Elitech leak detectors
The infrared (NDIR) sensor in Elitech ILD-200/300 models offers several distinctive advantages:
For optimal results with NDIR sensors, maintain a steady sweeping motion during inspection to detect concentration gradients.
The heated diode sensor technology provides a different approach to leak detection:
Elitech leak detectors are designed for long-term reliability with proper maintenance:
Elitech ILD series detectors utilize relative concentration detection technology:
False alarms can occur due to several factors. Here are the most common causes and solutions:

