Piezon Led Handpiece -> FS-455: compatible with the Airflow Prophylaxis Master, Airflow Master Piezon (previous generation), P250/P150 (simple stand alone scalers).Airflow Max Handpiece -> FS-477 /US: compatible with the Airflow Prophylaxis Master, Airflow Master Piezon, Airflow Master, Airflow S2, Airflow S1 (old devices).Perioflow handpiece -> FS-474: compatible with Airflow Prophylaxis Master, Airflow Master Piezon, Airflow Master.
The above-mentioned handpieces are not compatible with handies.