The liquid level and temperature composite RS06-30 series sensor developed by RSIND company can simultaneously output multiple switch signals and analog signals, meeting the simultaneous detection of liquid level and temperature in different places. It can reduce the number of openings for users, simplify and micro design, and have a beautiful appearance to meet equipment upgrade needs (4-channel switch PNP/NPN switchable, 2-channel analog 0-20mA/4-20mA switchable). It can be flexibly installed according to different environments, allowing for the adjustment of the display and electrical output interface to modify the direction required for on-site working conditions, and can be flexibly applied.