The MMRT is a combination explosion-proof totalizer and rate meter. the unit has two eight-digit totalizers, one being an accumulated non-resettable totalizer and the other being an eight-digit resettable batch totalizer. the non-resettable totalizer can be toggled from the totalizer to the rate meter via a reed switch activated by a magnet located within the explosion-proof housing. the mmrt has a programmable scaler and decimal point which allows the displaying of totals and rate in any engineering terms.