计数管控制电源是它具有良好工作性能的前提。
The control power supply of the counter is the precondition of the counter.
探测元件：采用G - M计数管，灵敏度高、响应快、工作稳定可靠。
Detection of components: use of G-M counter tube, high sensitivity, fast response, stable and reliable.
具有12位LED数码管显示，可分别显示电压、电流、计数值。
With 12 LED digital display, can show the tube voltage, current and count value.
具有12位LED数码管显示，可分别显示电压、电流、计数值。
With 12 LED digital display, can show the tube voltage, current and count value.
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