• 1 mR/hr Most Sensitive Full Scale Range
• Integrate and Rate Capability
• Energy Corrected from 6 keV to 2 MeV

Specifications

• Radiation Detected: Alpha above 3.4 meV, beta above 70 keV, gamma and X-rays above 6 KeV
• Operating Ranges: Rate: 12 overlapping ranges: 0-1, 3, 10, 30, 100 and 300 mR/h and R/hr; 0-10, 30, 100 and 300 µSv/h, 1 and 3 mSv/h; 0-10, 30, 100 and 300 mSv/h, 1 and 3 Sv/h.  Integrate: 6 overlapping ranges: 0-1, 3, 10, 30, 100, and 300 mR; 0-10, 30, 100, and 300 µSv, 1 and 3 mSv
• Response Time: 90% of final reading within 8 sec. on 1 mR/hr range, 3 secs on 3 mR/hr range decreasing to less than 1 sec. on all other ranges
• Detector: Unsealed air ionization chamber with 1.1 mg/cm² mylar end window.   Supplied with protective cover of tissue equivalent plastic 300 mg/cm²
• Display: 7.9 cm (3 1/8") taut band meter
• Battery Complement: Two 1.5 volt "D" cells and four 22.5 volt No. 505 batteries