防爆电话机，一、使用范围:本产品适用于‖A、‖B、‖C类T1~T6组爆炸性气体场所,可广泛用于石油、化工、煤矿、油轮、化纤等行业中含易燃易爆危险场所为通讯之用  .                                                                                                                                                                                                                    二、工作环境:
a.环境气压86~106KP防爆电话跟普通的电话功能是一样的，通过高度封胶，不让火花和电磁场往外泄漏来达到防爆的效果a;                                                                                          b.运行环境温度为-10~40℃;    
c.周围空气相对湿度为10%~95%;                                                                                                    d.含有‖A、‖B、‖C类T1~T6组爆炸性气体场所;                                                                                                        e.环境噪声:∠60dB;          
f.无滴水、无腐蚀气体场所.