Quantity   Component name
1 × Brennenstuhl Funkschalt-Set RCS 1000 N Comfort, 1507450 https://www.amazon.de/dp/B001AX8QUM/ref=cm_sw_em_r_mt_dp_3eiGyb1DGBK2E
1 × 433 MHz Sender and Receiver (only the Sender is needed) https://www.amazon.de/dp/B00OLI93IC/ref=cm_sw_em_r_mt_dp_DfiGyb04NH87F
1 × another 433MHz Sender with better coverage http://l.facebook.com/l.php?u=http%3A%2F%2Fwww.ebay.de%2Fitm%2F172297596527%3F_trksid%3Dp2057872.m2749.l2649%26ssPageName%3DSTRK%253AMEBIDX%253AIT&h=ATPypM7NOcWKHjarI2PxgIFuspt4klJPNJq0y0j3ezrdCldQ8A84yBgUVCt9gWBsc5dg_gMt1WthdIp401f4t8uJuQpE2red2MPJrPuw5xfybyVck8mAYm6wORb4pfE8U0V6
1 × Jumper Wire Female-Femal https://www.amazon.de/dp/B01EV70C78/ref=cm_sw_em_r_mt_dp_cgiGyb69A1RS9