Refrigerant Leak Detector with Audible and Visual Alerts
Extech RD350 Refrigerant Leak Detector
High-sensitivity leak localization for industrial and commercial HVAC/R infrastructure.
The Extech RD350 is a precision diagnostic instrument engineered to identify and isolate refrigerant leaks in complex cooling, air conditioning, and industrial refrigeration systems. Utilizing advanced heated diode sensor technology, this detector provides the rapid response and pinpoint accuracy required by HVAC/R technicians to ensure environmental compliance, prevent catastrophic system failures, and optimize cooling efficiency.
Designed for deep-system diagnostics, it features a flexible 40cm (16-inch) gooseneck probe that allows engineers to navigate congested compressor compartments, tight pipework, and inaccessible evaporator coils with ease.
Key Technical Capabilities
Broad Refrigerant Compatibility: Highly sensitive to all standard refrigerants, including CFCs, HCFCs, and HFCs (such as R-22, R-134a, R-404a, R-410a, and others), making it a universal tool for diverse cooling infrastructures.
Multi-Level Leak Indication: Features a progressive, multi-color LED bar graph alongside an audible alarm that intensifies as the probe approaches the leak source, allowing for intuitive, eyes-free localization.
Selectable Sensitivity Levels: Equipped with user-adjustable High/Low/Normal sensitivity settings to filter out ambient background gases and accurately pinpoint both massive ruptures and micro-leaks (down to 0.25 oz/yr).
Advanced Sensor Performance: The field-replaceable heated diode sensor delivers a highly stable response profile and extended operational lifespan compared to traditional corona discharge sensors.
Operational Readiness: Includes a built-in LED work light at the probe tip to illuminate dark testing environments and a low battery indicator to ensure uninterrupted field reliability.
Technical Specifications Summary
| Parameter | Specification |
| Detects | CFCs, HCFCs, HFCs |
| Sensitivity | 0.25 oz/yr (7g/yr) |
| Sensor Type | Heated Diode (Replaceable) |
| Probe Length | 40 cm (16 inches) |
Equip your technical maintenance teams with definitive refrigerant leak detection capabilities