New pool owner with 24' above ground pool in Ohio and RayPak heater... heater manual suggests pH about 7.4-7.8 range if I recall... I am constantly adding "pH UP" after our many rainstorms this summer... was sold the Chlorinator frog/frogger system... any way just to get a device that can monitor this pH and do this for me... sensitive due to heater... Thanks in advance.