AC DC 12V RF Wireless Relay Control Switch 4CH 433MHZ 220VAC with 2 Remote

From the shop's description

AC DC 12V RF Wireless Relay Control Switch 4CH 433MHZ 220VAC with 2 Remote The AC DC 12V RF Wireless Relay Control Switch is a 4-channel remote control relay module operating at 433MHz RF frequency. It allows wireless switching of lamps, fans, pumps, electric locks, garage doors, and many other AC or DC loads. The kit includes a receiver board with protective enclosure and two 4-button wireless remote controls. Features: 4-channel independent relay control with 433MHz RF wireless communication. DC12V receiver power supply with four SRD-12VDC-C 10A relays. Relay contacts rated for 250VAC/10A and 30VDC/10A load switching. EV1527 learning code system supporting up to 12 remote control pairings. Three configurable output modes: jog, self-lock, and interlock via onboard jumpers. RF receiver sensitivity exceeding -105dBm for extended range operation. Specifications: Parameter Details Product Type RF Wireless Relay Control Switch Number Of Channels 4 Channel Operating Frequency 433 MHz Receiver Supply Voltage DC 12 V Relay Coil Voltage DC 12 V Remote Control Buttons 4 Buttons Remote Button Labels A, B, C, D Number Of Remotes 2 Control Modes Momentary, Toggle, Interlock Coding Type Learning Code Modulation ASK Quiescent Current 5 mA To 8 mA Receiving Sensitivity -104 dBm To -105 dBm Relay Load Voltage AC 110 V To 240 V Or DC 0 V To 28 V Relay Contact Rating 5 A At 220 VAC Relay Contact Rating DC 10 A At 12 VDC Remote Control Distance Up To 50 m Open Area Operating Temperature -30 °C To +80 °C Enclosure Plastic Housing Receiver Board Length 68 mm Receiver Board Width 48.5 mm Receiver Board Height 16.6 mm Enclosure Length 74.7 mm Enclosure Width 54.5 mm Enclosure Height 28 mm Remote Length 56 mm Remote Width 31.5 mm Color White Enclosure With Black Remote Applications: Wireless lighting control. Smart home automation. Garage door control. Electric door locks. Pumps and water systems. Fans and ventilation systems. Security and alarm systems. Remote power switching. Industrial automation projects. Package Include: 1x 4-Channel RF Relay Receiver Module with Enclosure. 2x 4-Button Remote Control Transmitters (A, B, C, D). 1x Protective Plastic Shell / Enclosure.