Features: brand new and high quality AK-C210911 AC single-channel remote control switch adopts independent programming of the brand single-chip microcomputer. The usage is simple and clear, easy to use, with low standby power consumption and high receiving sensitivity. The controller is designed with AC and for DC power supply modes, only the power module needs to be replaced. The product can be used for single-channel control of some high-power equipment. 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. 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 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 Switch Size: Approx.12.38x6.8x3cm/4.87x2.67x1.18 (including for shell) Working frequency: 433.92 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 AC100—240V Standby power consumption <0.5W No-load working current 10mA Receiving sensitivity -105dBm Working temperature -20-70℃ Maximum load current ≤30A Package Includes: 1 Set Wireless Remote Control note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.