explosion proof controls are constructed that can withstand explosions, sparking and flames during the heating of materials. Suited for applications where harsh or hazardous environments are a problem. Any object within the desired range is detected, while objects out of range are ignored. The detect point is independent of size, material, and reflectivity. The ranging and proximity modes provide the versatility of simple detection, or actual distance measuring. Explosion proof control systems are suitable for the resistance strain load cell application, such as hopper, platform, measurement of strain, tension and compression, weighing level, crane scale, hook scale, including cereal, light industry, metallurgy, construction material, chemical, energy source, chemical industry processing weighing. Advancement in almost all the field helps develop sophisticated explosion proof equipment for complete protection of life and machinery in the workstations.