WL-310 433 MHz Wireless Transmitter and Receiver Module (One Way Communication)
This unit contains a single IC chip with three pins as the transmitter and a single four pin IC for the receiver. Plug the transmitter to a microcontroller and the receiver to another, send long distance code or commands. This unit can send information through walls with a range of less than 200m. You are required to use a small 22 – 24 AWG cable and insert the stripped cable into the through-hole labelled ant to increase the range.
Specifications:
Operating Voltage: 3.5-12v
Current draw: 20mA – 28mA
Frequency: 433.92MHz
Documented Distance: 200m
Tested Distance: 200m (Through two closed doors)
Modulation type: AM
Operating Temperature: -10°C ~ +70°C
http://www.buildcircuit.com/how-to-use-rf-module-with-arduino/
https://www.pjrc.com/teensy/td_libs_VirtualWire.html
Arduino code see attachments, please install the VirtualWire library before loading code.