Features: brand new and high quality The Relay adopts 30A relay, which can load high-power electrical appliances to ensure long-term stability control. Adopts RF technology ,it can pass through walls, floors and doors, control receiver from most place within a reliable distance. Max range is up to 3000M with no obstacle. This long distance remote switch is used in pumps, mud pumps, motors, lamps, Fans,Insecticide machines, sprayers, car washers, bells, etc. Various types of electrical equipment . The remote control has a long distance and is easy to install. With external antenna, the receiving distance is greatly improved. The output current of the wide tin plating on the back is more stable, and the work of the insulation groove is safer and more reliable. The receiver adopts ultra-high sensitivity receiver module, which has much higher anti-interference ability than super-feedback module and ordinary super-heterodyne module on the market. Water Pump Remote Control Switch Receiver Only, other accessories demo in the picture are not included! Specifications: Material:ABS+Metal Remote Control Size: Approx.13.5x4.2cm/5.31x1.65inches Switch Size: Approx.12.38x6.8x3cm/4.87x2.67x1.18 (including for shell) Working frequency: 433 MHz 315mhz Working mode: jog, self-locking, interlocking mode Output mode: terminal block Demodulation method: ASK Control method: remote control or manual button control of the controller Working voltage AC100240V2 Standby power consumption