12V-48V Relay Remote Switch, Wireless RF Remote Control Switch, 50M Range, 2 Channel Relay Module, 433Mhz Transmitter Receiver for Water Pump Security System

• Easy To Use: We have made the transmitter and receiver work together and tested it, when you get it, you don't need to do any settings, just install it and you can use it.
• Remote Control: One key control, send lock mode, press the "on" button to work or open, press the "off" button to stop or close, convenient and quick.
• Wide Range of Uses: DC12V‑48V working voltage, the remote control switch is used in industrial control security fields, such as lights, window, lifting equipment, electric door, wireless door alarms, etc.
• Sensitive: The radio frequency signal can pass through wall, floor, door or window, 2 or more units can be used in the same position, and the maximum range is 50m/164ft (without obstacles).
• Safe: The low repetition rate of learning codes and the re learning mode provide high security, when the remote control is lost, the old code can be deleted and the new code can be re learned.

Specification: Item Type: Relay Material: ABS Working Voltage: DC12V-DC48V (DC 12V 14V 15V 16V 17V 18V 19V 20V 21V 22V 23V 24V 36V 48V) Working Temperature: -40℃-+80℃ Receiver Sensitivity＞-105dBm Working Frequency: 433MHz Output Current＜3A Built in Button Battery in the Remote Control: 2 x CR2016(75mAh) Package List: 1 x Relay 2 x Remote Control 1 x Manual