Features: Adopts a 30A relay, capable of handling high-power electrical appliances for long-term stable control Utilizes RF technology, enabling signal transmission through walls, floors, and doors for reliable control from most locations within range; maximum range up to 3000M in open area Suitable for use with pumps, mud pumps, motors, lamps, fans, sprayers, car washers, and various types of electrical equipment Long-distance remote switch with easy installation; external antenna enhances receiving distance; wide tin-plated terminals provide stable output; insulation grooves ensure safer and more reliable operation Receiver features ultra-high sensitivity modules with superior anti-interference performance compared to standard super-regenerative and ordinary super-heterodyne modules available on the market Water pump remote control switch receiver included only; other accessories shown in images are not included Specifications: Material: ABS + Metal Remote Control Size: Approx. 13.5 x 4.2 cm / 5.31 x 1.65 inches Switch Size: Approx. 12.38 x 6.8 x 3 cm / 4.87 x 2.67 x 1.18 inches Working frequency: 433MHz / 315MHz Working mode: Self-locking, interlocking mode Output mode: Terminal block Demodulation method: ASK Control method: Remote control or manual button control of controller Working voltage: DC 12V–48V Standby power consumption: Not specified