Sens-R-Trol is a combined sensor and electronic control which maintains the level of almost any sanitising chemical in your pool or spa.
Sens-R-Trol should be used with a pool chemical dispensing device such as a chlorinator or brominator.
Sens-R-Trol monitors the pool or spa whenever the pump is running to ensure that the sanitiser level is perfect. All you need to do is maintain a stable pH. Set the desired chlorine or bromine level and Sens-R-Trol will do the rest.