The Sauermann Si-RD3 Refrigerant Leak Detector is a professional diagnostic tool for finding refrigerant leaks quickly across HVAC and refrigeration systems. A heated diode sensor detects common refrigerants including HFCs, HCFCs, R1234yf, R1234ze, R290, R600a, and 5% hydrogen/95% nitrogen tracer gases such as Nidron 5 and Trace-A-Gas.
Three sensitivity modes — Low, Normal and High — allow the detector to be tuned to the job, whether hunting down a large leak or something much smaller. A 30cm flexible probe reaches into tight spaces around pipe joints, evaporators, compressors and service valves.
Visual LED indicators and audible alarms give immediate feedback as gas levels rise, and an autozero function, resetting in as little as 1–10 seconds depending on leak level and sensitivity threshold, keeps readings stable against fluctuating background levels. The compact IP54-rated housing suits everyday HVAC work.
Sub-1 gram-per-year sensitivity meets some of the tightest thresholds used in refrigerant leak detection, and three selectable sensitivity modes mean the same instrument works for both a large obvious leak and a much smaller, harder-to-find one. The heated diode sensor and fast autozero recovery keep readings reliable even as background gas levels shift during a survey, and the flexible probe reaches the pipe joints, evaporators and compressors where leaks commonly occur.
Order the Sauermann Si-RD3 Refrigerant Leak Detector online today.
| Brand | Sauermann |
|---|---|
| Product Type | Refrigerant Leak Detector |
| Detection Capability | HFCs, HCFCs, R1234yf, R1234ze, R290, R600a, 5% H₂ / 95% N₂ Tracer Gases |
| Sensor Type | Heated Diode Sensor |
| Sensitivity | <1 g/Year at 3mm; 2 g/Year in Moving Air (2cm/s at 3mm) |
| Sensitivity Modes | Low, Normal, High |
| Indication | LED Visual Indicators and Audible Alarm |
| Probe | Flexible Probe – 300mm |
| Recovery Time | 1–10 Seconds, Depending on Leak Level and Sensitivity |
| Battery Life | Up to 12 Hours |
| Power Supply | 4 x AAA LR03 1.5V Batteries |
| Housing | ABS TopSafe – IP54 Protection |
| Operating Temperature | 0 to +50°C |
| Weight | 295 g |
| Warranty | 12 Months |
