SENKO SI-100C headless Ex d transmitter, 4–20 mA; 2-wire toxic / 3-wire LEL; catalytic/IR/EC/galvanic.

| Item | Value |
|---|---|
| Target gas | LEL 0–100%, toxics by sensor, O₂ 0–30%Vol |
| Sensor type | Catalytic / IR / EC / Galvanic |
| Measuring method | Diffusion |
| Ingress protection | weatherproof |
| Explosion protection | Explosion-proof |
| Operating temperature | catalog |
| Battery | loop/24 V |
| Dimension | compact transmitter |
| Weight | — |
Built-in cal mode, weatherproof. Catalytic LEL T90 <10 s.
| Model | SI-100C |
| Principle | Catalytic / IR / EC / Galvanic |
| Method | Diffusion |
| IP | weatherproof |
| Certification | Ex d (catalog) |