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General Tools RLD400 Digital Refrigerant Leak DetectorLevels & Measurement

Professional Measurement: General Tools RLD400 Digital Refrigerant Leak Detector

The new Digital Refrigerant Leak Detector (RLD400) from General Tools & Instruments. HVACR technicians, contractors, plant and facility maintenance managers, mechanics, automotive and aviation technicians and others will appreciate the advanced detecting power and affordability of the new Digital Refrigerant Leak Detector (RLD400) from General Tools & Instruments.

With its proprietary semiconductor sensor, the RLD400 is built to detect all commercially available HFC, HFO, HC, HCFC and CFC refrigerant gases, including many new ozone layer-friendly blends, such as R-22 and R-1234yf, approved under the EPA’s Significant New Alternatives Policy (SNAP).

This Made in America instrument is ideal for inspecting and maintaining mobile and stationary air conditioners, refrigerators, chillers and heat pumps. It meets SAE J2791 and J2913 standards and European standard EN14624.

Among the RLD400’s best-in-class features are the lifespan of its proprietary semiconductor sensor—more than 300 hours of operation or 10 years normal use—and sensitivities of 0.05 oz./year (1.4 g/year) to R-134a and 0.025 oz./year (0.7g/year) to R-22.

A true mechanical pump draws in samples, which increases sensitivity. Three sensitivity levels let users choose the right level for specific environments.

Triple-redundant leak indication—a loud, fast beep; a bright flashing LED; and a relative digital leak size readout—make it easy to identify and characterize leaks in any setting.

The RLD400’s automatic calibration and reset ensures accurate leak readings not distorted by ambient levels. In addition, a leak test vial containing a refrigerant sample allows users to easily confirm the instrument is operating correctly.

And with its durable construction and padded hard plastic carrying case, the RLD400 is built to survive punishing tasks and harsh environments.

To learn more, visit or call Customer Support at 1-800-697-8665.