| No. | Picture | Model | Description | Brand | Action |
|---|
| 1. |  | 104662D | Lead sulfide photocell for C7015, orange color, highest sensitivy | Honeywell |  |
| 2. |  | 120320 | Replacement cadmium cell for C554, 7.5 mA minimum sensitivity | Honeywell | |
| 3. |  | 129464M | UV sensing tube, 0 to 250°F | Honeywell | |
| 4. |  | 129464N | UV sensing tube, -40 to 250°F | Honeywell | |
| 5. | | 38316 | Rectification photocell | Honeywell | |
| 6. |  | UVZ 780 | UV cell, blue | Satronic | |
