Features
•     Using mechanical detection methods, these types are not 
affected by temperatures, humidity, gases, etc. in the tank
•     Made with aluminum cases, these types can be installed and 
used outdoors
Operation principle
•     Operated with mechanical structures, JC7 series detect the 
heights of stored goods through the rotational movements of 
their wings
•     The wings are rotated by the motor. When resistance is 
generated on the wings by stored goods, the two micro-
switches are operated by the built-in cam.   
•     The first switch turns the control circuit on/off and the next 
switch turns off the motor to prevent motor overload