| Model | ALD-2 |
| Sensor Type: | Heated diode gas sensor |
| Minimum Detectable Leakage: | ≤3 g/year |
| Reaction Time: | ≤3 seconds |
| Warm-up Time: | 30 seconds |
| Reset Time: | ≤10 seconds |
| Operating Temperature Range: | 0-50℃ |
| Operating Humidity Range: | <80%RH(non-condensing) |
| Applicable Refrigerant: | CFCs, HCFCs, HFCs, HCs and HFOs |
| Sensor Lifetime: | ≥1 year |
| Reset: | Automatic / Manual |
| Probe Length: | 420mm(16.5in) |
| Battery: | 3 X AA alkaline battery, 7 hours continuous working |