The BLS3000 is an electronic version of a traditional float switch. On the clear LCD display you can read the current level and with the built-in PNP contacts you can monitor a low or high level. In addition to the switching outputs, there are also versions with an analogue 4-20 mA, or 0-10 Volt output. The BLS3000 can be used as a float switch, but also as a level transmitter.