WORKING IN MOST ENVIRONMENTS:The liquid level sensor can withstand 5Mpa at most which makes it can work at most environments. APPLICATION:The liquid level sensor can be used in water dispensers, water heaters, solar energy, air conditioners, humidifiers, bathroom equipment, sales machines, fuel tanks, water towers, liquid level control of chemical liquids, kitchen equipment, water heaters and other water heating equipment anti-dry water level sensors. MATERIALS:The liquid level sensor is made of 304 stainless steel and 316L material, which is durable and has a long service life. PREMIUM REED SWITCH:The premium reed switch of this liquid level sensor is come from Japan and US,which is very WORKING VOLTAGE:The liquid level sensor can work in AC 0-220V,and DC 0-200V which makes is suitable for most power source., Manufacturer: Garosa