Features: Equipped with 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; provides reliable remote control from most locations within an open area range of up to 3000 meters. 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 ensure stable current output, while insulation grooves provide safer and more reliable operation. Receiver features ultra-high sensitivity modules with superior anti-interference performance compared to standard super-regenerative and conventional super-heterodyne modules available on the market. Includes water pump remote control switch receiver 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: 433 MHz / 315 MHz Working Mode: Self-locking, interlocking mode Output Mode: Terminal block Demodulation Method: ASK Control Method: Remote control or manual button control via controller Working Voltage: DC 12V - 48V Standby Power Consumption: