Use this vertical float switch from Sensata Cynergy3 for liquid level detection in small tanks. It consists of a float, a magnet and a reed switch that automatically turn a pump on or off based on the liquid level in the tank. It can be installed at the top of the tank to prevent overflow or at the bottom to stop the pump from running when there's no liquid. Thanks to its compact width of 30mm, it's a good choice for smaller applications such as vending machines and chemical dosing equipment.

• Choice of 1/8in NPT (National Pipe Taper) and M12 mounting options for versatility
• Wide operating temperature range of -20°C to +100°C for use in demanding conditions
• Nitrile rubber gasket for enhanced liquid and abrasion resistance as well as leakage prevention
• Ample cable length of 1m for flexible connections

Yes, it can. This component is made from polypropylene (PP), which has a high heat tolerance. This means that this switch won't degrade if it comes into contact with hot liquids.