Large Power Long Range 433MHz Wireless Transceiver Kit for Arduino

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: 27dBm@12V (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.GeneralModelN/AForm  ColorBlue + BlackQuantity1 setMaterialPCB + alloy + plasticSpecificationWorking VoltageDC 4-12VEnglish Manual / SpecYesDownload Linkhttps://drive.google.com/drive/folders/0B6uNNXJ2z4CxQ3pRNU5WSkdhMzg?usp=sharingPacking List1 x 433MHz RF transmitter module1 x 433MHz RF receiver module2 x 433MHz spring antennasPacking List:1 x 433MHz RF transmitter module1 x 433MHz RF receiver module2 x 433MHz spring antennasPackage Weight:0.015kg (0.033lb)Package Size:5.5cm x 2.5cm x 3cm (1.97in x 0.79in x 1.18in)