Features: Industrial grade 12 channel wireless remote control relays switches set with antenna and remote control. DC12-48V, wide voltage design, stable voltage output. 433MHz receiver frequency, strong anti-interference, and continuous stability. Super heterodyne receiving module with sensitivity up to -105dBm. Wireless control distance is about 300meter, stable long-distance communication, signal passing through wall, and quick responses. Quality materials, flame retardant terminals, high temperature resistance, and stable performances. The terminals connection port is more convenient without the need for wiring. Pairing can be done directly without setting jumper or coding switches, with support for learning buttons and simple operation. Widely used in road gate, garage doors, ambient lights, LED lighting fixtures, electric curtains, lifting equipment, industrial control, sprinkler system, etc. Specifications: Material: ABS Set Type: 1x Remote Control, 2x Remote Control (optional) Size: Approx. 122x87x17mm/4.80x3.42x0.66inch Working Voltage: DC12-48V Relays: 30Amp Power: up to 800W(Single Channel), Total 9.6KW Standby Power Consumption: 10mA Signal Sensitivity: -105dBm Frequency: 433MHz Mediation Way: AKS Remote Control Distance: about 300m/328yards Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1x Industrial Grade 12 Channel Relays Module with Remote Control(1 or 2 Remote Optional) 1x Receiving Antenna