Introduction :
Wireless Relay kit (4 channels-12V) is DC 12 volt relay switch is equipped with 4 channel wireless receiver that built with high stability, security and performance.
While the included 1 remote controls transmit strong signal that can pass through walls, floors and doors, steadily control receiver from any place within a reliable distance,.
Easy and Flexible Switch Relay .
Wireless Relay kit (4 channels-12V) is a perfect remote switch for those hobbyists with home automation DIY projects or business Industrial electrical. 
Features :
- Voltage :Ā (5 -24) V.
 - stretch the antenna to get moreĀ distance.
 - Working frequency: 433mhz.
 - Working temperature: -40 Degree to 80 Degree.
 - Output voltage: DC and AC is optional.
 - Max load current: 20A.
 
Packaging :
- 4 channelsĀ transmitter .
 - 4 relay receiverĀ module.
 - 1 remote control.
 
Ā