KIB RV Water System Monitor Kit #M21VW DESCRIPTION: M Series monitor system w/pigtails Model #: M21VW Lighted pump switch 3 K101 tank pigtails white bezel and label. No logo Allows monitoring of fresh water grey water holding tank and battery levels. All functions are controlled from one test switch for easy operation. All panels also have a lighted switch to control the water pump. Features: Single wire per tank Draws no current until activated Wide range of input voltages Easy installation Low cost Monitors fresh water grey water holding tank and battery levels. Functions are controlled from indepedent test switches. Lighted On / Off switch to control the water pump.