Feature: float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device. It can be easily converted from normally open to normally close by inverting the float. Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay or contactor are not included here. Cable color may be different, we will random shipment. Specifications: Product Name : Water Level Sensor Max Contact Rating : 10W Max Switching Voltage : 100V DC/AC Max Switching Current : 0.5A Max Breakdown Voltage : 220V DC/AC Max Carry Current : 1A Max Contact Resistance : 100m ohm Temperature Rating : -20 / +80 Celsuis Float Ball Material : P.P Float Body Material : P.P Thread Dia(Approx) : 9.5mm / 0.374" Switch Body Size : 23.3 x 57.7mm / 0.9" x 2.27"(Max D*H) Cable Length : 36cm / 14.2" Color : White Package Included: 5 x Water Level Sensor Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Manual measurement, please allow 1-10mm error. Thanks for your understanding. float switch is a device used to sense the level of liquid within a tank. The switch may actuate a pump, an indicator, an alarm, or other device. It can be easily converted from normally open to normally close by inverting the float. Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay or contactor are not included here. Cable color may be different, we will random shipment. Name : Water Level Sensor Max Contact Rating : 10W