The GM-42 Detector is a sensitive low range gamma radiation detector used to measure dose rates in areas where radioactive material is handled such as clean rooms, radio pharmacies, Q.A. Departments packing rooms and backup to the extremely sensitive PM-11 Exhaust Stack Detector.
| Geiger Type | ZP-1201 or equivalent |
| Measuring Range | 0.5 µSv/h to 10 mSv/h (50 µR/h to 1 R/h) |
| Sensitivity | 17 cps/mR/h |
| Accuracy | ± 10% reading within the measuring range |
| Energy Range | 50 keV – 1.3 MeV |
| Energy Dependence | ± 20% |
| Angular Dependence | Less than ± 20% for ±45° of preferred direction |
| Temperature Range | Operation: -10°C to +50°C |
| Storage: -20°C to +60°C | |
| Humidity Range | 40% to 95% RH (non condensing) |
| Dimensions: | 197 mm (7.75”) Length x 38 mm (1.5”) Diameter |
| Weight | 250 gr (0.55 lb) |
| Casing | Aluminium, splash proof |
| Hook-up cable length | up to 100 m |
| Output signals | TTL pulses (5V, 5ms) |
| Detector status logic: | |
| Identification, malfunction, overflow |
