Features: . Equipped with a 30A relay, capable of handling high-power electrical appliances for long-term stable control. Utilizes RF technology to transmit signals through walls, floors, and doors, allowing reliable remote operation within an open area range of up to 3000 meters. This long-range remote switch is suitable for use with pumps, motor pumps, motors, lamps, fans, sprayers, car washers, and various types of electrical equipment. Easy to install with extended range due to external antenna design. Features wide tinned terminals on the back for more stable current output. Insulation grooves enhance safety and reliability during operation. The receiver uses ultra-high sensitivity modules with superior anti-interference performance compared to standard super-regenerative and ordinary 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: 433MHz / 315MHz Working Mode: Self-locking, Interlocking Output Mode: Terminal block Demodulation Method: ASK Control Method: Remote control or manual button control Working Voltage: DC 12V - 48V Standby Power Consumption: