Gomelong is a professional manufactures of Three phase four wire din rail pluse power meter. Our professional expertise in manufacturing Three phase four wire din rail pluse power meter has been honed over the past 10+ years. Three phase four wire din rail pluse power meter accurately and directly measure 50Hz or 60Hz active energy consumption from three phase four wire AC electricity net. Three phase four wire din rail pluse power meter can display total energy consumption by step and motor type impulse register.