技术参数: 放射性探测:GAMMA粒子,α和β粒子 报警范围:0 - 999 mR/小时 线性范围:0-75mR/hr Geiger tube with 0.50" dia. mica end window. 2.0-3.0 mg / sq. cm density. 管盖直径0.50" Cobalt-60 response响应: 1095 cpm per mR/hr 最大屏蔽背景数< 10 cpm 失效时间 < 100 microseconds Dead time < 100 microseconds. Operating temperature range操作温度范围: -20 to 55 degrees C. Maximum altitude最大高度: 10,000 ft. Typical battery life over 1500 hrs.( 2 months ) 电池使用寿命:2个月 产品大小:Dimensions are 61 mm x 105 mm x 22 mm (2.4" x 0.85" x 4.15")