Beijing Dorland System Control Technology Co., Ltd. has recently launched the intrinsically safe industrial grade explosion-proof multimeter Multimeter 87v EX, a newly designed, developed, and produced industrial grade 6000 bit true RMS digital multimeter with IP67 waterproof and dustproof, 3-meter drop resistant, sturdy and durable, 6000 bit counting, VFD testing function, LoZ function, full model automatic range, and true RMS testing, ensuring easy application in the industrial and maintenance fields. In addition, it is also suitable for outdoor construction, pipeline inspection, etc. It can be used in conjunction with various applications such as OA office systems, inspection positioning systems, data collection systems, etc. Especially suitable for harsh environments with hazardous explosions, such as petroleum, chemical, pharmaceutical, oil depots, tank farms, and other hazardous areas with flammable and explosive gases.