PRODUCT DESCRIPTION: Float Switch Water Level Controller is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float. Another common type is a float that raises a rod to actuates a microswitch. One pattern uses a reed switch mounted in a tube; afloat, containing a magnet surrounds the tube and os guided by it. When the float raises the magnet to the reed switch, it closes. Several redds can be mounted in the tube for different level indications by one assembly. PRODUCT SPECIFICATION: Color : Like the picture show Quantity : 1 pc Shape : Square Contacts : NO+NC Rating : 16 (4)A 250V Switch Angle : IP 68掳 卤 45掳 Standard Cable : PVC 3X1, H07RN - F 3GI Max Level : 1 Bar Available Length : 2M / 5M / 7M / 10M Environment : pool, oil, weak acid and weak base in water or oil tank, etc.