放电计数器
Discharge counter
放电计数器又称过电压动作计数器是对过电压产品工作状况进行实时及累计计数的装置。配合F型使用的计数器，有套管和显示屏两部分组成，具有经济实惠、结构简单、无需电源等优点。常规型号：JSY-8.
Discharge counter, also known as overvoltage action counter, is a device that counts the working conditions of overvoltage products in real time and accumulatively. The counter with F type is composed of sleeve and display screen. It has the advantages of economy, simple structure and no power supply. Conventional model: JSY-8.
在线监测仪
On-line monitor
在线监测仪是过电压保护器的配套产品，实时在线监测系统过电压，并记录过电压发生的时间和相别。配合T型使用的在线监测仪，需要有电源才能使用。一般配有电子显示屏。相比较而言功能较为强大，可配有通讯功能。

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ix.com.cnshidiaofx.37ix.com.cn monitor is an auxiliary product of over-voltage protector. It can monitor the over-voltage of the system on-line in real time and record the time and difference of the over-voltage. In order to cooperate with T-type on-line monitor, power supply is needed. Usually equipped with electronic display screen. Comparatively speaking, it has powerful functions and can be equipped with communication functions.