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RD300: Refrigerant Leak Detector

Detect Leaks from Air-Conditioning Units and Cooling Systems

View Datasheet > RD300


The RD300 Refrigerant Leak Detector detects leakages from air-conditioning units and cooling systems. It’s easy to use and is ideal for detecting leaks from air-conditioning units and cooling systems that use all standard refrigerants. The multi-colored LED light bar indicates the level of leaking refrigerant detected by the RD300. The built-in, bright LED convenience light located at the sensor tip illuminates dimly lit inspection areas. Complete with leak test bottle, 9V battery, and protective hard carrying case.

Additional information

Detectable Refrigerants

R‐22, R‐134a, R‐404a, R‐410a, and all CFCs, HCFCs and HFCs


Heated Diode

Sensitivity Levels

High 0.25oz/yr (7g/yr) Medium 0.5oz/yr (14g/yr) Low 0.99oz/yr (28g/yr)

Warm up Time

90 seconds

Auto Power OFF

Automatic shut off after 10 minutes

Power Supply

9V Battery

Battery Life

13 hours of continuous use

Operating Conditions

0°C to 50°C (32°F to 122°F) <80%RH

Storage Conditions

‐10°C to 60°C (14°F to 140°F) <70%RH

Flexible Probe Length

450mm (18")


184 x 70 x 40 mm (7.2″ x 2.8″ x 1.6 ″)


280g (10.0 oz.)

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