The Espar Airtronic 3 line spans 2 generations and 5 models, from the Espar Airtronic S2 D2L, Espar Airtronic M2 D4L and Espar Airtronic M2 D4R to the Espar Airtronic S3 D2L and Espar Airtronic M3 D4L. Ratings run from 3.2/5 to 3.5/5. All of them are still sold.
Each column is a release year, oldest on the left; each row follows one model into the model that replaced it, and a long arrow spans the time between them. A date marked c. is approximate, taken from an announcement or the earliest review we found. Ratings are out of 5 and compare each model against its own type.
More from Espar: every Espar product ranked.
Generation by generation
Airtronic S2 D2L to Airtronic S3 D2L
The Espar Airtronic S3 D2L replaced the Espar Airtronic S2 D2L. Both rate 3.5/5.
| Spec | Airtronic S2 D2L | Airtronic S3 D2L |
|---|---|---|
| Fuel burn | 0.1 to 0.28 L/h | 0.1 to 0.27 L/h |
| Power draw | 6 to 31 W | 6 to 27 W |
Full Airtronic S2 D2L vs Airtronic S3 D2L comparison
Airtronic M2 D4L to Airtronic M3 D4L
The Espar Airtronic M3 D4L replaced the Espar Airtronic M2 D4L. Both rate 3.4/5.
| Spec | Airtronic M2 D4L | Airtronic M3 D4L |
|---|---|---|
| Fuel burn | 0.11 to 0.51 L/h | 0.12 to 0.49 L/h |
| Power draw | 6 to 42 W | 6 to 37 W |