LIQUID LEVEL WATER SENSORS FLOAT SWITCH Characteristics: Compact size, easy to install. Feel the liquid level in the tank to turn on/off the pump, indicator, alarm or other device. It can be installed as a normally closed/open switch depending on your needs. It can be used with hydroponics, salt water tank, fresh water tank, gardening, aquariums to control the head, pet bowls, aquariums, filtration, heating; ale you need to make sure your projekt does not contain mercury before you use it! Switching voltage (max. ): 100 V DC; Switching current (max. ): 0,5A. Specification: Material: plastic; Size: 8,7 cm * 3 cm Cable length: 40 cm/15.76" Float length: 85 mm / 3.35" Switching voltage (max. ): 100 DC Switching current (max. ): 0,5A Contact evaluation (max. ): 10 W List of packages: 1 * Smooth Float Switch