20pcs RF 315MHz for Transmitter Receiver Module RF Wireless Link Kit +40PCS Spring Antennas OPEN-SMART for Arduino - pro

Features 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 the wireless doorbell remote control rolling gates smart car smart home etc About transmitter module Compatible with Arduino Library VirtualWire Working voltage 3 12VDC Working current 3 5mA Working frequency 315MHz Transfer rate 4 8kbps max Transmission distance When the spring antennas are soldered to the transmitter and receiver module and the power supply is 5V the open area transmission distance can be increased to 40 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 Library VirtualWire Operating voltage 4 5 5 5VDC Working frequency 315MHz Working Current 1mA Sensitivity 105db Antenna You can use the wire whose length is 17cm or the spring antenna for 315MHz RF Great for DIY project Package includes 20 x Transmitter module20 x Receiver module