MSB is a mono parameter control instrument series with box to allow wall mounting. 2 rows alphanumeric backlit display. These instruments have 2 relay outputs (suitable to regulation or set alarms) and 1 current output totally programmable. All outputs can be excluded temporary (for example to do maintenance) through ON/OFF button. Errors and alarms are showed directly on the display and all programs and calibration data remain saved on a internal storage for 10 years. Temperature input is available on all models and allows to measure the temperature and to balance  the measurements of PH, conductivity, residual Chlorine and oxygen.