Model Code Explanation (D661-4209)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4196)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4195)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4187)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4186)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4178)D661: Series (ISO 4401‑05, integrated 24 VDC e ...