@Yves911 said:
For cheap door contact http://www.chinamade.com/433mhz-wireless-door-window-magnet-sensor-detector-alarm-home-security-system.html
10 for about 20€ (including shipping)
@Yves911 said:
Wireless Weather Station Digital Thermometer Humidity Sensor
http://www.banggood.com/433MHz-Wireless-Weather-Station-Digital-Thermometer-Humidity-Sensor-p-965559.html
Works fine
Both in the list