| Radiation Detected: | Gamma above 50 keV | 
| Scintillator: | NaI(Tl) 2″ diameter, 2″ thick. Window of 1 mm. (0.04″) Al. | 
| Sensitivity: 137Cs: | 20,000 cps/mR/h | 
| Energy Calibration: | Software calibrated single channel analyzer (SCA). | 
| Count Rate Range: | 0 to 50,000cps | 
| Output Signals: | RS-232 or RS- 485 and TTL pulses. | 
| Temperature Range: | -30oC to +60oC (-22oF to +140oF) | 
| Humidity Range: | 10% to 95% RH (non condensing) | 
| Dimensions: | 340mm (13.4″) length, 70mm (2.75″) Diam. | 
| Weight: | 1.75kg (3.9lbs) | 
| Casing: | Aluminum, splash proof, IP-65 | 
| Max. Cable Length: | TTL pulse – 100 m, RS-232 – 12 m, RS-485 – 1.2 km | 
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