Professional range of LS-52100 Series level switches from Gems Sensors. These units solve the problem of point level sensing in tanks that have inaccessible tops or bottoms or at intermediate locations in larger tanks. The float pivots with changing liquid level, displacing a shuttle which magnetically actuates a hermetically sealed switch within the unit. Operation is positive and dependable and Installation is through the tank side at the detection point. All models are highly reliable and excellent quality.