Hanna's wall-mounted indicators are an ideal economical solution in applications where constant monitoring of a stationary sample is required. The following section contains indicators to
monitor pH, ORP, TDS, Conductivity and Temperature. This versatile range of indicators allows the user to choose the probe that best fits their application . Selected instruments offered in this
line also provide a visual alarm so the user can easily recognize if the monitored solution is out of specifications for the application. Hanna's wall-mounted indicators are very easy to install
and use. They are powered with a 12 V power supply and provide very accurate results. Many models feature an interchangeable probe so that if an application requires a particular probe it can
simply be plugged into the meter. Other features of these instruments include backlit LCD, manual or automatic calibration, water-tight casings, large and easy-to-read displays, calibration check
feature for the thermometers, visual alarms and multi-parameter models that allow the user to monitor up to three different parameters with one indicator.