| Manufacturer | Part number | Category |
|---|---|---|
| C501/0010 | Meters & Controllers | |
| C501/0011 | Meters & Controllers | |
| C501/0012 | Meters & Controllers | |
| C501/0100 | Meters & Controllers | |
| C501/0101 | Meters & Controllers | |
| C501/0102 | Meters & Controllers | |
| C501/0110 | Meters & Controllers | |
| C501/0111 | Meters & Controllers | |
| C501/0112 | Meters & Controllers | |
| C501/0200 | Meters & Controllers | |
| C501/0201 | Meters & Controllers | |
| C501/0202 | Meters & Controllers | |
| C501/0210 | Meters & Controllers | |
| C501/0211 | Meters & Controllers | |
| C501/0212 | Meters & Controllers | |
| C501/0300 | Meters & Controllers | |
| C501/0301 | Meters & Controllers | |
| C501/0302 | Meters & Controllers | |
| C501/0310 | Meters & Controllers | |
| C501/0311 | Meters & Controllers |
