Features: Uses 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 control from most locations within an effective range of up to 3000 meters in open areas Ideal 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 tinned terminals provide stable current output, and 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 superheterodyne modules available on the market 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 Working Voltage: DC 12V - 48V Standby Power Consumption: Not specified