The kit includes one pair of transmitter and receiver modules and one pair of spring antennas for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote control systems, such as wireless doorbell, remote control rolling gates, smart car, smart home, etc.
- Compatible with Arduino
- Arduino Library: VirtualWire
- Working voltage: 4-12V DC
- Working current: 40mA
- Transmit power: [email protected] (large power)
- Working frequency: 433MHz
- Transfer rate: 4.8kbps (max.)
- Transmission distance: When the spring antennas are soldered to transmitter and receiver module and the power supply is 5V, the open area transmission distance can be increased to 400 meters. The supply voltage is larger, the transmission distance farther.
- Antenna: You can use the wire whose length is 17cm or the spring antenna for 433MHz RF.

About receiver module (rectangle shape):
- Compatible with Arduino
- Arduino Library: VirtualWire
- Operating voltage: 2 - 5.5VDC
- Working frequency: 433MHz
- Working Current: 2mA
- Sensitivity: -110dB
- Antenna: You can use the wire whose length is 17cm or the spring antenna for 433MHz RF.
- Great for DIY project.