1. 특 징   - 감마 또는 x선 조사율 측정   - 온도 보정된 기기   - 베타선 측정을 위한 Sliding shield   - 50R/h까지 의 5개의 range   - Non-mechanical range switching 2. Specification    * Radiation Detected Beta, gamma, and x-ray * Ranges Five linear ranges: 0-5, 0-50, 0-500 mR/h and 0-5, 0-50 R/h * Meter Scale length, approx. 3 inches (7.6 cm), 2% accuracy. Linear markings from 0 to 5 in 50 minor increments. The meter is back-lit * Response Time 90% of final reading within 5 seconds; see options below for faster response * Linearity Within ± 5% of full scale * External Controls Range switch, including Off, Zero, and Battery checking positions. Zero knob used to set meter to zero when Zero position of range switch is selected or when in no significant adiation field. Light switch, for meter light. * Internal Controls Five calibration controls, one for each range * Chamber Bias Ten 3 volt lithium coin cells, 30 volts