and high quality Feature: Made of fireproof ABS material, durable, firm and has a long service life. Automatically turns on or off the power supply of electric devices based on the set water level. Fast induction, high sensitivity, quickly controls water level as needed. Effectively protects the water pump, extends lifespan, and ensures efficient operation. Supports automatic water replenishment and drainage; easy to install following the manual. Indicator light design: red light for power, green light for output. Two options available: with switch or without switch, simple to operate. Suitable for sewage disposal, home water pumps, pumps, water towers, pools, and production equipment. Specifications: Item Type: Automatic Water Level Controller Material: ABS Size: 92x66x49mm / 3.6x2.5x1.9in Color: Grey Optional Type: A, B, C, D Control Distance: less than 50 meters Rated Current: 30A Rated Voltage: 220V Quantity: 1 PC Note: Transition: 1cm = 10mm = 0.39inch Please allow 0-1cm error due to manual measurement. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package Includes: Type A: 1 x Automatic Water Level Controller Type B: 1 x Automatic Water Level Controller, 3 x 2m Sensor Type C: 1 x Automatic Water Level Controller with switch Type D: 1 x Automatic Water Level Controller with switch, 3 x 2m Sensor