The PD-210 PUMP Decoder can be used to control an entire Pump Station, an Individual Pump and/or a Booster Pump. The PD-210 Pump Decoder has a selector switch, which allows it to be set to respond to one of six (6) possible address codes. Meaning as many as up to six (6) PD-210 Pump Decoders may be used on any given system, whether they are controlling Pump Stations, Individual Pumps, Booster Pumps or a combination of them.