Model Code Explanation (D661-4168)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4158B)D661: Series (ISO 4401‑05, integrated 24 VDC ...

Model Code Explanation (D661-4157B)D661: Series (ISO 4401‑05, integrated 24 VDC ...

Model Code Explanation (D661-4125E)D661: Series (ISO 4401‑05, integrated 24 VDC ...

Model Code Explanation (D661-4099)D661: Series (ISO 4401‑05, integrated 24 VDC e ...

Model Code Explanation (D661-4090)D661: Series (ISO 4401‑05, integrated 24 VDC e ...