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leak test bottle, hard carrying case, and one 9 V battery.
Detect refrigerant leaks in air conditioning and cooling systems with the Extech RD300 leak detector. A convenient LED work light at the tip of the probe illuminates dimly lit areas, making it easier to identify the source of a leak. Select from three sensitivity levels with multicolored light bars visually indicating the leak size. Mute button toggles the audible alarm on and off. Detector also features a flexible probe, low-battery indication, and auto-shutoff.
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