A float switch is a device used to sense the level of liquid within a tank.<br> The switch may actuate a pump, an indicator, an alarm, or other device.<br> Use with hydroponics, saltwater tank, freshwater tank, , aquariums for power head control, pet bowls, fish tanks, filtration, heating, pumps, ponds, alarms, boats, air condition drain pans, pressure , carpet cleaning mach, reef aquarium, fluid control, ice machines, coffee pots, , automotive, automobiles, tropical fish tanks, evaporator coils, condensation line, in relays, or what ever your project may be.<br> 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 and contactor are not included here.<br> Thread Dia: 9.5mm;<br> Wire Length: 39cm/15.35 inch ;<br> Float Ball Size: 55 x 17mm/2.2 inch x 0.67 inch (L*D)<br> Max. Breakdown Voltage: AC/DC 220V;<br> Max. Switch Current: 0.5A;<br> Max. Switch Voltage: AC/DC 100V;<br> Max Wattage: 10W<br> Temperature Range: -30C- +125C;<br> Max. Contact Resistance: 100m Ohm;<br> Hex Head Size: 14 x 14 x 4mm/0.55 inch x 0.55 inch x 0.16 inch (L*W*T)<br> Breaking Height: 94mm/3.7 inch ;<br> Breaking Angle: 45 Degree;<br> Body Length: 119mm/4.6 inch ;<br> Product Name: Float Switch<br> Country of Manufacture: CHINA;<br> Material: Stainless Steel;<br> Color: silver<br> Net Weight: 38g;<br> Package Content: 1 x Water Level Sensor<br> Note:Light and different displays may cause the color of the item in the a little different from the real .The measurement allowed is +/-1-3 cm.