| Old type number | 18545 |
| New type number | ZP1220 |
| Other type numbers | G24H, MX145 |
| CV number | CV2147 |
| Detects | gamma radiation |
| Effective range | 0,0001-0,1 R/h |
| Plateau | 380-480 V |
| Cathode | 28% Cr, 72% Fe |
| Filling | Neon, Argon, Halogen |
| Height | 270 mm |
| Diameter | 23 mm |
| Symbol |
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