SFD200 · Refrigerants
A hand-held refrigerant leak detector for HVAC/R work — residential, commercial and automotive systems. Same instrument as the SFD201, same color ppm readout, refrigerants only.
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Specifications
| Detects | CFC · HCFC · HFC refrigerants |
|---|---|
| Sensor | Japan-made metal-oxide semiconductor (MOS) |
| Display range | 10 – 1000 ppm |
| Display | Color LCD — ppm value + intensity bar |
| Indication | Color display + variable-rate buzzer |
| Sensitivity | High / Low, selectable |
| Probe | 14 in (355 mm) flexible gooseneck |
| Battery | 2500 mAh rechargeable lithium-ion |
| Charging | USB-C |
| Warm-up | 30 seconds |
| Operating temperature | 14 – 122 °F (−10 – 50 °C) |
| Storage temperature | 14 – 140 °F (−10 – 60 °C) |
| Operating humidity | 5 – 90 % RH, non-condensing |
Need combustible gas as well — natural gas, LPG, propane? That is the SFD201.
Getting a real result
No faster than one inch (25 mm) per second, about a quarter inch off the surface. Sweeping quickly is the single most common reason a real leak reads as nothing.
Fans, wind and open doors carry the leak away before it reaches the probe. Shut things down and let the air settle first.
If the reading stays high after you move away, back off until it settles, press ZERO, then approach again. Repeating this is how you narrow down.
Alcohol-based coil cleaners and leak-detection sprays respond about as strongly as refrigerant itself. So do solvents, perfume and hot steam.
The full procedure is in section 9 of the user manual.
Against manufacturing defects, in the United States. Full terms, and the questions worth checking before you call it faulty.