ITEM NAME:433Mhz RF DC5V Transmitter and Receiver Wireless Module Link Kit for Arduino Description: Receiver module parameters: - Product Model: MX-05V - Operating voltage: DC5V - Quiescent Current: 4MA - Receiving frequency: 433.92MHZ - Receiver sensitivity:-105DB - Size: 30 x 14 x 7mm /1.2 x 0.6 x 0.3inch - External antenna: 32CM single core wire, wound into a spiral Transmitter Parameters: - Product Model: MX-FS-03V - Transmitter distance: 20-200 meters (different voltage, different results) - Operating voltage: 3.5-12V - Dimensions: Approx. 19 x1 9mm / 0.7 x 0.7inch - Operating mode: AM - Transfer rate: 4KB/S - Transmitting power: 10mW - Transmitting frequency: 433M - Antenna: 25cm ordinary multi-core or single-core line - Pin arrangement: left-right(DATA;VCC;GND) - Application: Remote control switch, receiver module, motorcycle, car anti-theft products, home security products, electric doors, shutter doors, windows, remote control socket, remote LED and so on. Package Included: 1 Piece RF Transmitter 1 Piece RF Receiver Note: VCC voltage module operating voltage and good power filtering; Great influence on the antenna module reception, preferably connected to the 1/4 wavelength of the antenna, typically 50 ohm single conductor, the length of the antenna 433M of about 17cm; Antenna position has also affected the reception of the module, the installation, the antenna as possible straight away from the shield, high pressure, and interference source; frequency used to receive, decode and oscillation resistor should match with the transmitter..1 Piece RF Transmitter. Antenna position has also affected the reception of the module, the installation, the antenna as possible straight away from the shield, high pressure, and interference source; frequency used to receive, decode and oscillation resistor should match with the transmitter.