A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other device. Use them with hydroponics, saltwater tank, freshwater tank, gardening, aquariums for power head control, pet bowls, fish tanks, filtration, heating, or what ever your project may be<br><br>1pcs Tank Pool Horizontal Water Level Switch Liquid Level Sensor Liquid PP Plastic Ball Float Switch Features: 100% Brand New. Contract rating (Max): 10W Switching voltage (Max): 110VDC/AC Switching current (Max): 0.5A Breakdown voltage (Max): 220VDC/AC Carry current (Max): 1A Contract resistance (Max): 100 OHM Temperature rating: -10 ~ +60 Celsius degree colour:Black Material:metal size:Cable length: 40cm, float length: 8.5cm<br><br>Package Contents: 1 x Liquid Level Sensor<br><br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.