The Well Watch 600 Series units were designed for fixed installation purposes. These small units screw into the access hole for the well and will provide constant level data. They are available in 2 configurations. The Well Watch 660 allows the user to view well levels on the LCD screen or from the comfort of your home with the optional 310 Remote Display. The Well Watch 670 is commercially driven, complete with RS232, RS485 (Modbus), 4-20mA output, 0-5V Analog output, 5V alarm output, USB and built in wireless link for use with the optional 310 Remote Display. The 670 is mainly used for long term monitoring projects or Telemetry integration.