C&K offers switches for temperature adjustment and configuration of tank-less or instantaneous water heaters. For configuration, customers can use the full profile BD series or the low profile SDA series DIP switches. Both offer from one to twelve positions. The BD has longer cycle life and comes with vertical or right angle actuation while the SDA offers flush or extended actuators and comes in both SMT and thru hole. For temperature adjustment, the PTS645 can be used on the internal circuit board or, for front panel mounted membrane type controls, the PTS530 is an ideal option.